Kohler K-GP1112256 Drylock 2" Tank Gasket

WHAT OUR CUSTOMERS SAY…

“This place is amazing. I live in San Antonio, Texas and there are a few plumbing stores with vintage parts but they never have what I need and the ordering process takes them weeks. I found a rare part at Noels by reverse image search but they will do it for you. I've used them 3 times. Their agents are knowledgable and polite. They will find you the same part or the after market part and get you going on your way. They have 2-3 day shipping. My house was built in the 30's and they know exactly what the after market parts are that I need. I save money and time going to them. I sure wish they were in San Antonio! I will just go directly to Noel's next time - they are LEGENDS! ”

-BP W.

06/21/2026

$14.87

The Kohler K-GP1112256 is a genuine original equipment manufacturer (OEM) 2-inch Drylock tank-to-bowl gasket designed to provide a secure, leak-proof seal between the toilet tank and the bowl.

We can ship anywhere the US Postal Service ships. For orders being shipped outside the US, please contact us at (888) ASK-NOEL, noelsplumbingsupply@fuse.net, or via the text widget on this screen.

SKU: 91112256 Category: Toilet Repair Kits Tag: Kohler

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Stop unexpected bathroom leaks and restore your toilet’s factory performance with the Kohler K-GP1112256 Drylock Tank Gasket. This genuine KOHLER OEM plumbing part is specifically engineered to form an airtight, watertight seal between the toilet tank and the bowl. It is designed exclusively for Kohler two-piece toilets utilizing a 2-inch flush outlet valve and Drylock connection technology.

K-GP1112256 1112256 GP1112256

K-GP1112256 (also referenced as GP1112256 or 1112256)
Fits between tank and bowl
Works with a wide variety of Kohler two-piece toilet models (such as select Cimarron models) that feature a 2-inch flush valve.