OSI-10-1C Replacement Filter Cartridge, quick-disconnect cartridge, reduces sediment, chlorine taste & odor, HydroBlend™ /ScaleStick™ scale inhibitor, 1.65 gpm flow rate, 10,000 gallon capacity, 30-125 PSI working pressure, 35-100°F operating temperature, for use with OSI-10-1K filter systems