KleenWater Carbon Block Water Filters, 2.5 x 20 Inch Replacement Cartridges (4) with Genuine Can Holders (2) Reduces Chlorine chloramines VOCs pesticides and taste / odor contaminants Replaces: KX Technologies 32-250-125-20, Pentek CBC-20 & EP20, Watts WCBCS20, Hydronix CB-25-2005, Filtrex FX20CL2 Made in the USA; 5 micron filtration; 2.5 x 20 inch Radial flow provides long service life and improved flow rates NSF certified with up to 3 gallon per minute flow rate