The WaterPik IR-25, IR25 Twin Pack Water Filter Cartridge has been discontinued. The Pentek P25 can be used as a replacement for the IR25.
The WaterPik IR-25, IR25 Twin Pack Water Filter Cartridge utilizes high density polypropylene to filter out rust and sediment. The IR-25 is a 20 micron filter for medium particulates. The IR-25 reduces rust and sediment in WaterPik models IF-20A and IF-20 as well as other brands listed below.
The WaterPik IR-25 Twin Pack Water Filter Cartridge fits Model InstaPure IF-10A, IF-20A,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-25 Twin Pack Water Filter Cartridge lasts for up to 2 months or 10,000 gallons each cartridge.