American Standard Flapper Assembly for Cadet 3 Toilet-738920-0070A - The Home Depot
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American Standard

Model # 738920-0070A

Internet # 204120831

Flapper Assembly for Cadet 3 Toilet

American Standard Flapper Assembly for Cadet 3 Toilet

This item has been discontinued.
The Home Depot no longer carries this specific product.

$4.99 / each


Model # 738920-0070A

Internet # 204120831

Store SO SKU # 1000950109

The American Standard Flapper Assembly is engineered to function flawlessly. Our superb design is durable and reliable. Once you confirm that this flapper assembly will work with your Cadet 3 toilet, you can install it easily and with confidence.

  • Durable construction
  • Reliable performance
  • Easy to install
  • Check the repair part information for your toilet to confirm compatibility

Info & Guides

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Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Chain Included 
Corrosion Resistant 
Plumbing Part Type 
Toilet Flapper 
Warranty / Certifications
Manufacturer Warranty 
Limited 1-year 


Rated 4.4 out of 5 by 7 reviewers.
Rated 2.0 out of 5.0 by Wrong design causes leak over time I received this white flapper directly from AS and it failed in 1 year. Leak started showing up where the fill valve would kick in to refill water every 45 minutes. The problem lies with the ridged flapper plastic surface that is in touch with the flapper's silicone seal (see photo). Over time, the silicone seal would become soft and because of this ridged plastic surface the silicone seal would follow the ridged shape and produce a rippled surface that's in touch with the tank's opening. This non-flat surface allows water to slowly leak out from the tank. March 11, 2015
Rated 5.0 out of 5.0 by Exact Fit Simple and easy to install. Exact fit. Picked up at store within a week. March 31, 2015
Rated 5.0 out of 5.0 by Great substitute for original flapper This flapper was used to replace the one with a small chain & float which had come with the water-saving toilet. It only needed a hole drilled at the top for the float and it works perfectly. March 27, 2015
Rated 4.0 out of 5.0 by It works This replacement flapper looks like the original - which did not last 5 years. That is why I can not say much about the quality. It solved the "mystery" flushing problem. February 25, 2015
Rated 5.0 out of 5.0 by Great product! I purchase the replacement flapper assembly online, and it was easy to install and work well! December 23, 2014
Rated 5.0 out of 5.0 by Direct OEM replacement - No issues When the original flapper broke, I first bought a universal one. The power of the flush was reduced and it leaked slightly. When i found out I could get a replacement from American Standard from Home Depot, I ordered it on-line and picked it up at my local store. The new new American standard flapper made a huge difference in the flushing power and installed easily. August 13, 2013
Rated 5.0 out of 5.0 by Exactly what we needed to fix the problem. Very pleased with the ordering process and procedure. We used the store pick up saving us the shipping cost. A great Home Depot feature. The item was package well and in perfect condition. May 6, 2014
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