... kinds made of stainless, copper. 3. long life, anti-acid, and corrosion Water faucet filter accessories1)fit for all faucet2)size have :M16X1 ... ,M18X1,M20X1,M22X1,M24X1,M24X1,M28X13) filter:normal brass filter,stainless steel 304,anti-acid, anti-corrosion,Disc filters single layer/multi-layered.Disc ...