This inline GAC filter is one of Omnipure's K series inline filters that easily install directly to your water line and reduce weeping or seepage potential. The K2333 uses granular activated carbon to reduce chlorine, taste and odor in your water and is available with various fittings to meet your water line's specifications. Compatible parts include K2340, K2328, and K2336. The K2333-KK is the inline filter used on the AXEON CRO-50 and WaterMaker Fiver (WM5-50) Reverse Osomsis Systems.