Whirlpool WHKF-DB1 Compatible Undersink Water Filter Replacement Cartridge 2 PACK Two (2) 2.5 inch x 9.75 inch carbon block water filter cartridges distributed by IPW Industries Inc. Compatible Replacement Filters for Matrikx Pb1 06-250-125-975, Pentek CBR2-10R 155403-43, Whirlpool WHKF-DB2 and WHKF-DB1, Sears/Kenmore 34377 For Chlorine Removal and a Dirt / Sediment Rating of 1 Micron The IPW Industries Inc extruded activated carbon block filter boasts impressive capabilities. The mesh of the ingredient carbon provides for chlorine removal and a dirt/sediment rating of 1 micron nominal. It's capacity is 2,500 gallons for lead removal and 6,500 gallons for chlorine removal. These filters are a compatible replacement to these filter cartridges: Whirlpool WHKF-DB2 ,Whirlpool WHKF-DB1, Sears/Kenmore 34377 Omni GAC1-SS **Please note this is a compatible spare part and the manufacturers' names and part numbers have been used for reference purposes only.