K-GP1059291 Canister Flush Valve Seal - Pack of 5

Key Features

• Package includes five seals.
• Constructed from a durable, chemical-resistant material.
• Engineered to create a secure seal at the base of the flush valve.
• Outer diameter is approximately 3.38 inches.

Replaces / Cross-Reference Part Numbers

• Direct equivalent for KOHLER part number K-GP1059291.
• Replaces original red or yellow colored seals.

Compatibility & Fitment

• Fits most KOHLER single-flush toilets equipped with a canister flush valve.
• Compatible with Class Five and Class Six canister toilets.
• Works with models such as the KOHLER K-4436 tank.

When to Replace

• If the toilet runs continuously after the tank has filled.
• When water is audibly or visibly leaking from the tank into the bowl.
• If the existing seal is cracked, warped, or visibly degraded.

Installation Tips

• Turn off the water supply and empty the toilet tank before beginning.
• The seal is located at the bottom of the canister flush valve assembly.
• Clean the valve base and sealing surface before installing the new seal.
• Ensure the new seal is seated flat and evenly to prevent leaks.