[Heavy Duty Stainless Carbonation Cap]: High quality stainless steel carbonation caps, well made for rust resistance and corrosion-proof. Would last for a longtime in good condition. A must have equipment for home brew Carbonation. | [Great for Home Brew Carbonation/ Cleaning]: This ball lock carbonation cap is most used for homemade beverages carbonation, and meanwhile it is great for cleaning beer/ soda/ water/ juice lines. Easy to set up. | [Easily Counter Pressure Bottle Filling]: Ideal for counter pressure bottle filling. Fit for most soft drink PET bottles. Just simply attach this cap with a PET bottle and a ball-lock gas disconnect to coupling CO2 into the bottle for beverage carbonation. Your home made drinks will be right ready for drinking. | [Food Safe Gaskets 100% No Leaks]: We use premium material for the gaskets and o-rings. High resilient food safe rubber gaskets and rubbers to seal against all the threads and gives you 100% no leaks connections! We updated with 5 o-rings and 1 more gaskets for replacement. | [No Regrets Purchase]: Stainless steel made and weight about 3.6oz. We are committed to offer you with high quality product as well as superior service! Please feel free to tell if any problems, we would try our best to help. Lifetime technical support.