Easy-change Icemaker and refrigerator dispenser drinking water filter Level 4 - premium filtration. Reduces: Bad taste and odor, chlorine taste and odor, sediment, lead, cysts such as cryptosporidium and giardia, mercury, turbidity, particulate Class I, VOC, MTBE, chloramines. Features twist-On, twist-Off mechanism. Quick connect fittings and double water shutoff. 2 year limited warranty. NSF Certified. 500 gallon filter life. Includes: Filter head with built-in bracket, model No. RC-EZ-4 Level 4 replacement filter cartridge (SKU 411264), mounting screws, and filter change reminder sticker.