TRIPLE ACTION FILTRATION: Pureline filters use advance active coconut carbon blocks that remove the impurities from your drinking water in three different stages. First the water passes through the micro-pores of the filter, which removes the larges sediments and metals. This is known as mechanical filtration. Then the water is further purified through two separate stages of ionization filtration that take place as the water passes through the carbon block to your refrigerator. | CREATES SAFE DRINKING WATER: Pureline reduces 99% of chlorine, THM, VOC, all heavy metals, sediments, impurities, and other dangerous substances from your water. Pureline is the only generic brand on the market to meet the 99% reduction level. After your water passes through our filters all you are left with is clean, great tasting, and safe water to drink. | CERTIFICATION: PURELINE filters have been tested and certified by the NSF, WQA, and IAPMO. | NO LEAKAGE & 100% COMPATIBILTY: PURELINE's Research and Development Team has not only invested heavily in filtration but also in making sure the PURELINE MWF meets the exact designs and specifications as the original brand name filter. | PURELINE HISTORY: Pureline was one of the first generic filters on the market. While other foreign companies have entered the market focusing on putting out low cost / low quality filters we have refused to go that route. Pureline began with the dream of starting a filter brand focused on filtration and that is what we focus on until this day. The trade off is Pureline filters are more expensive than other generic filters, but much better quality. | COMPATIBLE FILTER MODELS: GE MWF, MWFP, MWFA, MWFAP, MWFINT, GWF, GWF01, GWF06, GWFA, HWF, HWFA, FMG-1, FMG,Smart Water, WFC1201, GSE25GSHECSS, 197D6321P006