What Flush Valve Seal Do I Need?
With such a wide variety of toilet flush valves on the market, selecting the correct flush valve replacement seal can be a bit overwhelming. We hope our part finder and/or the the helpful hints below will make your life a bit easier.
Choose from the following options:
- Video and step-by-step instructions below.
- Click the find part button to find the correct replacement flush valve seal for your toilet.
- If this wasn't quite what you were looking for, choose from the other common troubleshooting topics.
Step 1
Check out the video to learn more about flush valve replacement seals.
Step 2
Video didn't help? Check out the step-by-step instructions below.
Step 3
You can always give our Technical Support team a call too...We are here and happy to help! U.S.A: (262) 763-2434 & outside U.S.A.: (800) 528-3553. Available: Monday through Friday, 7:30 AM to 5:00 PM CST.

Korky offers a wide variety of replacement seals to cover the most popular models. Simply scroll to find the flush valve that looks like the one in your toilet and w will direct you to the correct replacement for your toilet.
Repair your leaking or running American Standard Champion 3, Kohler Class Five, or Kohler Class Six toilets. Replaces: American Standard seal: 738651-0070A & Kohler Seal: GP1059291. Korky part: 435
The Fits American Standard Champion 4 and Eljer Titan 4 Flush Valve Seal is designed to replace the original American Standard part: 7301111-0070A and the following tank models: American Standard® Champion® 4 (2004, 2034, 4266, 4272, 4077, 4281), Champion® 4 Max (4215), Champion® Pro (4225), and Eljer® Titan® 4 (4272). Korky part: 450
The Fits AquaSource and other dual flush seal kit contains 3 various sizes of seals designed to fit the following models: AquaSource (T801, EL205, 0400DF), American Standard (4339, 4348, 4349), Glacier Bay (N2316, N243OE, N2420, N2428R-DF, TL-6900-EW) and Mansfield (178). Korky part: 440
The Fits American Standard Champion Flush Valve Seal is designed to replace American Standard part: 738651-0070A. The valve seal fits specific American Standard tower style flush valves. Korky part: 428
The Fits Mansfield 210 and 211 Valve Seal is designed to fit both 2" 210 and 211 Mansfield flush valves. Korky part: 427
If your toilet uses a standard toilet flapper, find the correct replacement here.