SLOAN FLUSHMATE M-101526-F31 REPLACEMENT SYSTEM FOR M-101526-F3 503 MODELS (TANK) ** FOR ALL OEMS - EXCEPT KOHLER K4404 AND GERBER 28-385 TANKS SERIES 503 12" RI TANK
KOHLER 3-in Black Plastic Replacement Kit for K-4436 in the Residential Toilet Flush Valves & Repair Parts department at Lowes.com