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American Standard 7381043-400.0070A HET 1.28 GPF Flapper Assembly

Green plastic flapper with clear rubber washer with yellow float and stainless beaded chain.
Green plastic flapper with clear rubber washer with yellow float and stainless beaded chain.
Green plastic flapper with clear rubber washer with yellow float and stainless beaded chain.

chat iconWHAT OUR CUSTOMERS SAY…

“They had the part for my old plumbing system, that I wasn't able find at other places. Helpful people at the counter. ”
-Aleksandre
08/18/2026

$21.87

 

The American Standard 7381043-400.0070A is a 3-inch High Efficiency Toilet (HET) flapper assembly designed for 1.28 gallons per flush (GPF) toilets. This genuine OEM replacement part features a hard plastic frame and includes an integrated yellow float and a stainless steel chain.

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

SKU: 97381043400007 Category: Tag:

This premium, easy-to-install replacement part is engineered specifically to restore your high-efficiency toilet (HET) to peak performance. This DIY fix eliminates leaks, stops phantom flushes, and preserves your toilet’s water-saving 1.28 gallons per flush rating.

 

  • Includes a 3-inch hard plastic flapper, a yellow float, and a stainless steel chain with a hook.
  • Fits several American Standard series including Cadet 3, Town Square S, Loft, Tropic, and Lexington one-piece toilets.
  • Genuine repair part

 

7381043-400.0070A

Common questions about this product

Is this item the original manufacturer's recommended replacement part? chevron-icon

Yes, this is the OEM recommended part.

Is this the correct item for my application? chevron-icon

If you’re not sure text us a picture 1-888-275-6635 or email us a picture at noelsplumbingsupply@fuse.net.

 

We will make sure you have the right part.

 

 

chat iconWHAT OUR CUSTOMERS SAY…

“I sent in photos of a broken cartridge (still installed, couldn’t take it out myself due to water shut-off restrictions in a condo) and even with the limited view they were able to tell me the exact part I needed so I could have it ready for the plumber (meaning I didn’t need to pay for a plumber to come out twice!!) ”
-Alaina W.
06/27/2026
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