CM series GAC filter is made of catalytic activated carbon, it can remove chloramine and hydrogen sulfide from water effectively. It's also good at removing disinfection by-products such as chloroform and trihalomethanes (THMs). Specification CM series GAC granular carbon filter is made of catalytic activated carbon, it removes chloramine and hydrogen sulfide effectively, also good at removal of disinfection by-product like chloroform and THMs. Suitable for areas using surface water as source water and chloramine as a disinfectant. Features NSF Certified catalytic activated carbon High effect on chloramines, sulfide,and trihalomethane Low turbidity from carbon dust Rapid dechlorination Technical data Maximum temperature: 140F (60C) Maximum flow rate per 10: 1.06gpm (4L/min) Caution: Flush for 30 seconds before use. Do not exceed the maximum flow rate to maintain sufficient contact time.