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Colony/Evolution2/Colony3 Toilet Tank Cover
- High efficiency, ultra-low consumption (4.8Lpf/1.28 gpf), utilizes 20% less water
- Meets EPA WaterSense criteria
- Combination bowl and tank, less seat
- 12" (305mm) rough
- Siphon action bowl with direct fed jet and excellent rim wash
- Fully glazed 2" trapway
- Generous 9" x 8" water surface area
- 2" Flapper flush valve
- Pilot valve water control
Manufacturer Resources
Product Specs
- Product Type:
- Tank Cover
- Product Group:
- Washroom/Bath
- Product Subgroup:
- Toilet
- Department:
- Plumbing
- Country of Origin:
- Mexico
- Product Color:
- White
American Standard 735131-400.020 – Frequently Asked Questions
1) Which American Standard toilets does the 735131-400 tank cover fit?
The 735131-400 is the tank cover for American Standard Colony, Evolution 2 and Colony 3 toilets. It is the lid only, not the tank, so match it to one of those three tank bodies before ordering. If the tank on your fixture is from a different American Standard series, this lid is not the one for it.
2) Is this a replacement lid only, or does it include the tank?
Lid only. The 735131-400 is the porcelain cover that sits on top of the tank, with no tank, no flush valve and no fill valve included. The Colony/Evolution 2/Colony 3 fixture it belongs to is sold as a combination bowl and tank, so if the tank itself is cracked you need the tank, not this cover.
3) I manage a building with a lot of Colony toilets and keep breaking lids. Can I standardize on one part number?
Yes, if the fixtures are Colony, Evolution 2 or Colony 3. All three share this cover, so 735131-400.020 in white covers the whole group and you can stock one lid for the property instead of one per model. Confirm the series stamped inside the existing tank on a sample of the units first, since American Standard's other lines take different lids.
4) The toilet this lid goes on is 1.28 gpf. Does the tank cover affect the flush?
No. The cover is a passive porcelain lid, so it has no effect on flush performance. The Colony/Evolution 2/Colony 3 toilet under it flushes at 1.28 gpf (4.8 Lpf) and meets EPA WaterSense criteria through its 2 inch flapper flush valve and pilot valve water control, all of which live inside the tank. Replacing a broken lid changes none of that.
5) How do I confirm my Colony toilet is a 12 inch rough before ordering the tank cover?
Measure from the finished wall to the center of the closet bolts at the base of the bowl. The Colony/Evolution 2/Colony 3 fixture this lid belongs to is a 12 inch (305mm) rough, which is the standard residential and commercial spacing. Rough-in only tells you the bowl was set for that spacing though, it does not identify the tank, so verify the series marking inside the tank as well.
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Does the American Standard 735131-400.020 come with a warranty?
Absolutely. The American Standard 735131-400.020 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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