Canister Flush Valve Seal (5 Pack) For Kohler Toilet Fill Valve Seal, 4436 6 MINUTE INSTALLATION - Keep your toilet running smoothly without any hassle with our toilet tank canister fill valve seal replacement; installation is easier and does not require removal of the toilet tank, ensuring that your toilet runs properly with minimal effort If you don't replace your toilet flush valve's excessively worn sealing gasket, which can cause noise and water waste, this is our replacement Kohler K-GP1059291 Canister Flush Valve Seal (red or yellow color) for all Kohler toilets with canister flush valves; Replaces GP1059291/2475620/1049291/ K-4436 Our seals are made of Excellence Quality material of silicone, which is durable and not easy to be damaged, compared with ordinary rubber toilet seals, our products have stronger resistance to chlorine and other chemicals Perfectly match with all Kohler toilets with canister flush valve, can solve the leakage problem, prevent the phenomenon of happy phantom flushing, restore the quiet operation of the toilet, improve the flushing pressure and avoid wasting water Installation Steps:1. Turn off the water supply, rotate the valve stem from the bottom of the tank and remove the stem.2. Remove the stem and the old gasket and wipe off the old rubber from the surface of the stem.3. Secure the inner ring of the seal around the lip of the tank.4. Place it back in place and perform a couple of test flushes to make sure that it is functioning well and sealing properly (Please check the model number of the toilet tank prior to installation.)