American Standard 7381008-400.0070A Flapper

Bright red rubber flapper with stainless chain.

WHAT OUR CUSTOMERS SAY…

“The vacuum breaker on my outdoor spigot failed and Noel's Plumbing was the only placeI could find that had the appropriate mfr. part. I sent a text with photos on Wednesday evening to make sure the part I found was correct. In less than 2 hours later, I had a reply confirming it was the correct part. Placed my order that evening and received the part on Saturday afternoon (about 2.75 days) and my plumbing issue was resolved! I highly recommend - I really appreciated the prompt and pleasant response. ”

-Kimberly S.

04/25/2026

$15.27

The American Standard 7381008-400.0070A is a genuine replacement toilet flapper assembly engineered specifically for gravity-flush toilet tanks.

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.

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Stop a leaking toilet with this beginner-friendly DIY fix. The American Standard 7381008-400.0070A Toilet Flapper Assembly (engineered for Fluidmaster 502B5 systems) is a premium, genuine OEM replacement part designed to instantly resolve tank leaks, phantom flushes, and poor water pressure. Constructed from durable, chemical-resistant silicone, this gravity-tank flapper ensures a tight, watertight seal.

7381008-400.0070A

For the American Standard Evolution 2 toilets
It directly replaces the Fluidmaster 502B5 flapper and serves as the official replacement for the discontinued American Standard part 7381024-400.0070A.