3M HF40 High Flow Series Model Replacement Cartridge, White Provides consistent high quality water Reduces particulate, chlorine taste and odor, cyst, and bacteria1 from incoming water Built-in scale inhibition can help to prevent the potentially harmful effects of scale build-up on equipment Integrated Membrane Pre- Activated Carbon Technology  (&#039;I.M.P.A.C.T.&#039;) filtration media combines a membrane with a premium  activated carbon block to help provide excellent throughput and  cartridge life Sanitary Quick Change (SQC) encapsulated cartridge design allows for  fast and easy cartridge change-outs without the need for a filter  wrench