GRAVITY-TANK FLAPPERS AND SEALS COVER THE OUTLET WHERE WATER LEAVES THE TANK TO FILL THE BOWL OF A GRAVITY-FLUSH TOILET THE FLAPPERS LIFT UP TO RELEASE WATER FOR FLUSHING AND RESEAT AFTER FLUSHING TO HOLD WATER WITHIN THE TANK THE SEALS ARE RINGS THAT FORM A SEAL AROUND THE FLAPPERS THESE PARTS ARE USED TO REPLACE WORN OR WARPED FLAPPERS AND SEALS THAT NO LONGER SEAL PROPERLY AND ALLOW TOILETS TO RUN CONTINUOUSLYGRAVITY-TANK REPAIR PARTS HELP FIX LEAKS AND RESTORE PROPER FLUSHING ON GRAVITY-FLUS