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Universal Flush conversion kit

Ratings & Reviews for Fluidmaster Universal Flush conversion kit

2.8
373
Review
 2.8 out of 5
373 Reviews


44% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

The Fluidmaster Duo Flush System-Dual Flush Converter offers adjustable flush levels to help reduce water usage. However, many customers reported issues with the product's quality and durability, including the handle breaking, the mechanism failing to properly seal and causing leaks, and the half-flush feature not working well. Several reviewers also complained about the cheap, plastic construction and parts that broke down quickly.

Customer review summary generated by AI, including incentivized reviews.
373 Customer Reviews

Broken handles are difficult to service

Would Not Recommend

And now the fill valve seal went bad which is why I bought this. The filling part of this is no different than the normal plastic stuff, very disappointing, but the flush thingie, its great. However there are 2 major flaws that make this unacceptable. The first flaw is people which leads to the second flaw, the handle. People will break your handle. Otherwise its great, I really liked it, but if you have kids, tenants, or maybe drink a little, keep away! One flick up for a 1/2 flush, hold it dow...

November 17, 2025
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Response from FluidmasterSupport

Fluidmaster would like the opportunity to help, please contact Fluidmaster’s Technical Service Department to help with your product. We are available...

FluidmasterSupportNovember 18, 2025

FluidMaster

Broke handle

Would Not Recommend

Bought this unit roughly 2 years ago. Install was ok and it worked well enough. But, last week, surprisingly the handle broke in the actuator module and as mentioned in other reviews I couldn’t even manually evacuate the water tank to even flush the basin. Can’t find any support or parts and wound up just giving up on the unit and went back to old flapper design. Sad, as it was nice to have a dual option but the design seems too dodgy to risk your time and effort on.

January 3, 2023
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Response from FluidmasterSupport

Fluidmaster would like the opportunity to help, please contact Fluidmaster’s Technical Service Department for help with your product. We are availabl...

FluidmasterSupportJanuary 6, 2023

FluidMaster

Great way to update a toilet for cheap.

Would Recommend

Converts standard toilet to be able to flush half as much for urine and liquid waste as well as down for solids.

November 24, 2022
Verified Purchaser
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Issues with running tank after insyall

Would Not Recommend

After getting this installed in my toilet I've been having issues with the toilet not wanting to fill and having to wiggle the flush lever. The running is like the flapper isn't completely seating. This is a HUGE problem since it's new install and now my toilet is running like before.

September 19, 2022
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Make sure your tank has the right size

Would Recommend

This product is a great idea for saving water if it is working. I bought one installed it, with no problems, 2 days later my second toilet started leaking too. I bought a second set, the water tank on the second toilet is smalller, I had to rise up the water level to get the full flash. Also the second one did not closed at the light flash, 2 times, water was running the hole night. I’m not sure if that’s the handle or something else in the mechanics. So far it is working now

July 13, 2022
From Universal Flush conversion kit Verified Purchaser
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Works for most toilets.

This works reasonably well for most toilets. What is crucial is before you install any part of this, make sure that the **new** handle can travel to the full up position and is not impeded in its travel by the toilet tank lid. If that is the case, you will not be able to use the half flush feature. Other than that, it is a good product.

June 22, 2022
Verified Purchaser
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Good product, easy installation

Would Recommend

Easy to follow instructions and process for installation

June 17, 2022
Verified Purchaser
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Must Use Plastic Handle Supplied

Would Not Recommend

After spouse installed new two flush Conversion Kit, got to the end and had me come help him set the flush capacities. We had a nice porcelain & chrome tank handle that matched the other bathroom faucets & accessories. Fluidmaster includes a cheap, plastic handle that you MUST use with this conversion kit, due to the shape of internal nuts. I don't know why they couldn't have made some option to replace handle using your existing hardware. I hate that manufacturers constantly use such cheap, pla...

May 15, 2022
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Response from FluidmasterSupport

Fluidmaster would like the opportunity to learn more and provide help. Visit our website Fluidmaster.com/support for videos, troubleshooting tips, em...

FluidmasterSupportMay 17, 2022

FluidMaster

The sealing adhesive on the part you attach is not

The part that is an addon to level the flusher hole would not seal no matter what I did. I ended up throwing it away and got a regular flusher. Otherwise they required that I buy another add on part

May 8, 2022
Verified Purchaser
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Response from FluidmasterSupport

Fluidmaster would like the opportunity to help, please contact Fluidmaster’s Technical Service Department for help with your product. We are availabl...

FluidmasterSupportMay 9, 2022

FluidMaster

interference with top of tank

Would Not Recommend

If the lid of the commode extends very much the handle will hit the top and not allow the low volume flush to operate. The remedy is to turn the handle 90 degrees so that you must move to the left for low volume flush and to the right for high volume flush. It works, but is not what I would have wanted.

May 5, 2022
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Response from FluidmasterSupport

Fluidmaster would like the opportunity to learn more and provide help. Visit our website Fluidmaster.com/support for videos, troubleshooting tips, em...

FluidmasterSupportMay 5, 2022

FluidMaster

doesn't work as expected!

Would Not Recommend

installed as directed and found the the handle will not work in 1/2 flush because lid. in max flush is short of enough water to flush ar full flush. Disappointed!

April 13, 2022
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