21x21x4 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

21x21x4 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

21x21x4 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

21x21x4 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

FilterBuy 21x21x5 MERV 11 Whole House Air Filter Replacement (Pack of 4 Filters). Actual size 20 3/4 x 20 3/4 x 4 3/8. Manufactured by FilterBuy in the USA using 100% American made components. | Designed to be compatible with and replace Rheem and Ruud filter part # PD540018, as well as Protech 540012, 540018, and PD540012. | Fits housing part #’s RXFH-E21AM10 and RXFH-E21AM13. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. Great for people with pets or allergies. | Designed to last up to 6 months. Ideal for residential and commercial use. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

FilterBuy 21x21x5 MERV 13 Whole House Air Filter Replacement (Pack of 2 Filters). Actual size 20 3/4 x 20 3/4 x 4 3/8. Manufactured by FilterBuy in the USA using 100% American made components. | Designed to be compatible with and replace Rheem and Ruud filter part # PD540018, as well as Protech 540012, 540018, and PD540012. | Fits housing part #’s RXFH-E21AM10 and RXFH-E21AM13. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | Designed to last up to 6 months. Ideal for residential and commercial use. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

FilterBuy 21x21x5 MERV 13 Whole House Air Filter Replacement (Pack of 4 Filters). Actual size 20 3/4 x 20 3/4 x 4 3/8. Manufactured by FilterBuy in the USA using 100% American made components. | Designed to be compatible with and replace Rheem and Ruud filter part # PD540018, as well as Protech 540012, 540018, and PD540012. | Fits housing part #’s RXFH-E21AM10 and RXFH-E21AM13. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | Designed to last up to 6 months. Ideal for residential and commercial use. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

FilterBuy 21x21x5 MERV 8 Whole House Air Filter Replacement (Pack of 2 Filters). Actual size 20 3/4 x 20 3/4 x 4 3/8. Manufactured by FilterBuy in the USA using 100% American made components. | Designed to be compatible with and replace Rheem and Ruud filter part # PD540018, as well as Protech 540012, 540018, and PD540012. | Fits housing part #’s RXFH-E21AM10 and RXFH-E21AM13. | MERV 8 AFB Silver. Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | Designed to last up to 6 months. Ideal for residential and commercial use. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

FilterBuy 21x21x5 MERV 8 Whole House Air Filter Replacement (Pack of 4 Filters). Actual size 20 3/4 x 20 3/4 x 4 3/8. Manufactured by FilterBuy in the USA using 100% American made components. | Designed to be compatible with and replace Rheem and Ruud filter part # PD540018, as well as Protech 540012, 540018, and PD540012. | Fits housing part #’s RXFH-E21AM10 and RXFH-E21AM13. | MERV 8 AFB Silver. Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | Designed to last up to 6 months. Ideal for residential and commercial use. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

21x22x1 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

21x22x1 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

21x22x2 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

21x22x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

21x22x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

21x22x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

21x22x2 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

21x23.5x5 Trane Perfect Fit BAYFTAH23M Furnace Filter / Air Filter - AFB Gold (Merv 11). (4 Pack) | Specifically designed by AFB to replace Trane Perfect Fit BAYFTAH23M filters | Removes lint & dust, dust mite debris, great for allergies | Pack of 4 Filters | Merv Rating of 11

21x23.5x5 Trane Perfect Fit BAYFTAH23M Furnace Filter / Air Filter - AFB Platinum (Merv 13). (4 Pack) | Specifically designed by AFB to replace Trane Perfect Fit BAYFTAH23M filters | Best of breed filter, small particles and bacteria | Pack of 4 Filters | Merv Rating of 13

21x23.5x5 Trane Perfect Fit BAYFTAH23M Furnace Filter / Air Filter - AFB Silver (Merv 8). (2 Pack) | Specifically designed by AFB to replace Trane Perfect Fit BAYFTAH23M filters | Removes lint & dust, dust mite debris | Pack of 2 Filters | Merv Rating of 8

21x23.5x5 Trane Perfect Fit BAYFTAH23M Furnace Filter / Air Filter - AFB Silver (Merv 8). (4 Pack) | Specifically designed by AFB to replace Trane Perfect Fit BAYFTAH23M filters | Removes lint & dust, dust mite debris | Pack of 4 Filters | Merv Rating of 8

FilterBuy 21x24.5x5 MERV 11 Whole House Air Filter Replacement (Pack of 2 Filters). Actual size 20 3/4 x 24 1/4 x 4 3/8. Manufactured by FilterBuy in the USA using 100% American made components. | Designed to be compatible with and replace Rheem and Ruud filter part #’s PD540014, PD540020, as well as Protech 540014 and 540020. | Fits housing part #’s RXHF-E24AM10 AND RXHF-E24AM13. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. Great for people with pets or allergies. | Designed to last up to 6 months. Ideal for residential and commercial use. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

FilterBuy 21x24.5x5 MERV 11 Whole House Air Filter Replacement (Pack of 4 Filters). Actual size 20 3/4 x 24 1/4 x 4 3/8. Manufactured by FilterBuy in the USA using 100% American made components. | Designed to be compatible with and replace Rheem and Ruud filter part #’S PD540014, PD540020, as well as Protech 540014 and 540020. | Fits housing part #’s RXHF-E24AM10 AND RXHF-E24AM13. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. Great for people with pets or allergies. | Designed to last up to 6 months. Ideal for residential and commercial use. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

FilterBuy 21x24.5x5 MERV 13 Whole House Air Filter Replacement (Pack of 2 Filters). Actual size 20 3/4 x 24 1/4 x 4 3/8. Manufactured by FilterBuy in the USA using 100% American made components. | Designed to be compatible with and replace Rheem and Ruud filter part #’s PD540014, PD540020, as well as Protech 540014 and 540020. | Fits housing part #’s RXHF-E24AM10 AND RXHF-E24AM13. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | Designed to last up to 6 months. Ideal for residential and commercial use. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

FilterBuy 21x24.5x5 MERV 13 Whole House Air Filter Replacement (Pack of 4 Filters). Actual size 20 3/4 x 24 1/4 x 4 3/8. Manufactured by FilterBuy in the USA using 100% American made components. | Designed to be compatible with and replace Rheem and Ruud filter part #’S PD540014, PD540020, as well as Protech 540014 and 540020. | Fits housing part #’s RXHF-E24AM10 AND RXHF-E24AM13. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | Designed to last up to 6 months. Ideal for residential and commercial use. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

FilterBuy 21x24.5x5 MERV 8 Whole House Air Filter Replacement (Pack of 2 Filters). Actual size 20 3/4 x 24 1/4 x 4 3/8. Manufactured by FilterBuy in the USA using 100% American made components. | Designed to be compatible with and replace Rheem and Ruud filter part #’s PD540014, PD540020, as well as Protech 540014 and 540020. | Fits housing part #’s RXHF-E24AM10 AND RXHF-E24AM13. | MERV 8 AFB Silver. Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | Designed to last up to 6 months. Ideal for residential and commercial use. Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x22x1 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x22x1 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x22x1 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x22x1 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x22x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x22x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x22x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x22x2 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x22x2 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x24x1 MERV 8 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Silver MERV 8, comparable with MPR 300 / 600 (clean living and dust & pollen). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | TRAPS 90% OF AIRBORNE PARTICLES: Say goodbye to dust, debris, lint, pollen, and pet dander. Say hello to better indoor air quality! | LONG-LASTING: Designed to last up to 3 months. Ideal for residential and commercial use. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x24x2 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x24x2 MERV 11 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Gold MERV 11, comparable with MPR 1200 Allergen or Micro Particle MPR800. | MERV 11 SYNTHETIC MEDIA DESIGNED FOR ALLERGEN PROTECTION: Attracts and captures pet dander, lint, dust, pollen, dust mite debris, mold spores, smoke, and smog. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x24x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 2 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x24x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 4 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.

22x24x2 MERV 13 Pleated Air Filter for AC HVAC or Furnace (Pack of 6 Filters). AFB Platinum MERV 13, comparable with MPR 1500 to 1900 (Ultimate Allergen Defense) or Allergen Elite FPR 10. | HOSPITAL GRADE MERV 13 SYNTHETIC MEDIA: Attracts and captures airborne particles or allergens less than one micron in size such as pollen, fine dust, pet dander. Also captures bacteria, viruses carrying particles, mold spores and smoke. | LONG-LASTING: Designed to last up to 3 months. Suitable for residential and business or commercial use (Industrial grade). | MADE IN THE USA: Manufactured by FilterBuy in the USA using 100% American made components. | HIGH QUALITY: Filter frames are made of beverage board, which stays strong through humidity and temperatures up to 200° F. Synthetic media provides significantly higher particulate efficiency than standard cotton media.