The IR-20 has been discontinued and will no longer be available. However, we do sell two direct replacements, the P5 and the PD-5-934 by Pentek. Just click the links below to view these products.
The WaterPik IR-20, IR20 Twin Pack Water Filter Cartridge utilizes high density polypropylene to filter out rust and sediment. The IR-20 is a 5 micron filter for fine particulates. The IR-20 is NSF standard 42 certified for the Class V Particulate reduction in WaterPik models IF-20A and IF-20.
The WaterPik IR-20 Twin Pack Water Filter Cartridge fits Model InstaPure IF-20A, IF-20, K-50 and most standard filter systems including the Ametek, Culligan, Cuno, Omni, Aqua Pure, Keystone, Filterite, Moen, Peerless, Purity Plus and Pollenex.
The WaterPik IR-20 Twin Pack Water Filter Cartridge lasts for up to 6 months or 30,000 gallons each cartridge.