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American Standard Ultima Diaphragm Assembly for Toilet Flush Valve 1.28 GPF - AMS-M954322
Model: AMS-M954322
Ultima Diaphragm Assembly for Toilet Flush Valve 1.28 GPFFor use with toiletsChemical and clog-resistant diaphragm kitDesigned to retrofit Sloan & Zurn diaphragm valvesKits are furnished complete...
American Standard
$88.34
$43.57
Flush Valve Assembly 1.28 GPF
- Genuine American Standard Spare Part
- FLUSH VALVE Assembly for select 1.28gpf American Standard toilets
- Valve is white in color
- Valve is made from plastic
- Contains valve body with flapper, chain and hook
- Call American Standard Customer Service at 1-800-442-1902 for compatibility
- Used and trusted by Plumbing Professionals
Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- Valve Assembly
- Department:
- Plumbing
- Parts and Accessories Type:
- Valve
- Application:
- Toilet
American Standard 738921-103.0070A – Frequently Asked Questions
1) Will this American Standard flush valve fit my toilet?
It is built for select American Standard 1.28 gpf toilets, not for every model in the line and not for other brands. Because American Standard changed tank and valve geometry across model runs, the maker asks that you confirm fit by model before ordering, at American Standard Customer Service, 1-800-442-1902. If your toilet is a 1.6 gpf or an older gravity model, this is the wrong assembly.
2) Is the 738921-103 a genuine American Standard part or an aftermarket copy?
Genuine American Standard spare part, ordered under manufacturer part number 738921-103.0070A. For a property manager standardizing tank guts across a building of American Standard fixtures, that is the number to keep on the parts list rather than a universal flapper kit.
3) Does replacing the whole flush valve fix a running toilet, or should I just change the flapper?
If the flapper seat itself is scored, warped, or mineral-pitted, a new flapper alone keeps leaking, and that is when you swap the whole valve. The 738921-103 assembly covers both cases at once since the flapper, chain and hook ship attached to the valve body. Note this is the flush valve on the tank side, not the fill valve, so it will not solve a tank that refuses to shut off at the supply.
4) What is this American Standard flush valve made of, and does the color matter in the tank?
Plastic body, white. Color is cosmetic here since the assembly lives inside the tank under the lid, but it does tell you this is the standard white-bodied valve and not a metal or colored service part. The only option offered is the plain part with no applied finish.
How fast can I get the American Standard 738921-103.0070A delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the American Standard 738921-103.0070A come with a warranty?
Absolutely. The American Standard 738921-103.0070A is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the American Standard 738921-103.0070A?
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