The Omnipure K2533-KK is the 3/8-inch quick-connect version of the K2533-JJ inline filter — same 10-inch granular activated carbon construction, but sized for 3/8-inch water lines instead of 1/4-inch lines. The larger line size handles higher flow rates, making this version the right choice for whole-house pre-filtration, large-capacity beverage equipment, and similar applications.
3/8-inch quick-connect KK fittings on both ends provide tool-free installation — push lines in, lock with the quick-connect ring, done. Granular activated carbon provides reliable chlorine reduction, taste improvement, and odor removal. The 10-inch cartridge length gives sufficient carbon contact time at the higher 3/8-inch flow rates to maintain effective filtration.
For 3/8-inch water line installations, RO system feed lines, larger residential ice makers (commercial-residential hybrid units), and similar applications, this is the right Omnipure inline filter. Made by Omnipure in Caldwell, Idaho — the same American manufacturer behind the wider Omnipure product line.






