Compatible Replacement for Kitchenaid 2168701, Bosch CS-52 640565, W1085590, EVOLFLTR10, WHKFR-PLUS, AP3961137 Refrigerator Water Filter Cartridge by OnePurify RFC1800A 4PK HEALTHY CHOICE: Our Active Carbon Block Filter is designed to reduce levels of chlorine off-flavors & odor, lead cysts and other impurities & contaminants. For optimum performance replace every 6 months EASY TO INSTALL: Simple and clear instructions AFFORDABLE OPTION: Costs less than OEM filters without compromising any quality or flow rate CERTIFIED PERFORMANCE: WQA Certified. Manufactured in an ISO9001 / FDA Registered facility COMPATIBLE REPLACEMENT FOR: CS-52, CS 52, CS-452, 452, CS-522, 522, CS-532, 532, CS-562, 562, OCS CS-51, 51, CS450, CS-512, 512, 55866-05, 55866 05, 5586605, 55866-06, 06, 5586606, 700200002518, 640565, AP3961137, 1257074, EVOLFLTR10, WHKFR-PLUS, WHKFR PLUS, WHKF-R-PLUS, WHKF WHCF-R-PLUS, WHCF W1085590, 56932, 2168701, EVOLFLTR10 Simple, 1-step installation Get the same OEM performance without compromising quality or flow rate Your family deserves healthy, crystal clear drinking water NSF/ANSI certified to remove chlorine and other contaminants Compatible With: CS-52, 640565, EVOLFLTR10, CS-51, AP3961137, EFF-6026A, WSB-1, WSQ-4 CERTIFIED AND TESTED by the Water Quality Association to NSF/ANSI 42 standards. Manufactured in an ISO9001 / FDA Registered facility. For optimum performance change your filter every 6 months Included with your purchase is a set of reminder stickers to remind you when it's time to change OEM Quality Standard. Perfectly Fits Compatible Refrigerator Models mentioned above. Removes Chlorine, Bad Taste &amp; Odor, Heavy Metals, Rust and Particulates. Great Taste &amp; Water Clarity. Tested for Water Safety &amp; Quality