Plastic :PP Materials inside: Active carbon and resin Active Carbon : Remove Chlorine, ... , organic impurities,dust ,grain ,odor1. Main Component: ---Activated Carbon ---Resin ---PP filter 2. Useful life: one month 3. G.W: 0.13KGS ... 4. Means of carton: ----340x650x160mm Contents(20FT) 50000pcsContents (40HQ) 120000pcs water filter