We are a Chinese professional manufacturer for all kinds of waterfilter and elements and we have been this field for 11 years. Suchas water filter cartridge, water filter housing, RO spare parts,filter Faucet, FRP and some filter system. Some products have NSF42certification. OEM is welcome. Our most competitive products are water filter cartridge likeactivated carbon block filter cartridge, melt blown filtercartridge, string wound filter cartridge, in line filter cartridge,And refrigerator water filter ,refrigerator air filter, Coffeemachine filter, etc.