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.complete garbage
Would Not Recommendleaks so quite you cant tell filled my septic tank up...
Sounded like a good idea
Would Not RecommendProduct looked well made and installation was super easy. Easy to adjust and use. Worked just as described and pretty happy with it so when the other toilet started acting up I bought another. Within a month the 1st one failed and constantly ran. No apparent way to fix it so installed the old style kit. Just last week the 2nd one failed. Got 12 months out of one and maybe 6 months on the second. Junk Junk Junk Stay away from this product. But if you're in Florida and really really want on...
Sweepstakes
Contact Fluidmaster’s Technical Service Department for help with your product we are available Monday through Friday from 5:30 AM through 5:00 PVM Pa...

Cool product
I didn’t realize that this only fit a 2” but the product look very nice and the instructions were easy to follow!
Verified PurchaserSweepstakes
Does not secure well
Would Not RecommendThis flush assembly doesn’t work on a Kohler tank because it doesn’t use a nut to secure the flush valve to the tank. It just has a couple of cheap clips.
Verified PurchaserSweepstakes
Contact Fluidmaster’s Technical Service Department for help with your product we are available Monday through Friday from 5:30 AM through 5:00 PM Pac...

Worked for 3 weeks
Would Not RecommendAfter 3 weeks we have to to “jiggle” the handle after every flush, otherwise it will keep running indefinitely. We’ve tried adjusting the handle but it’s like it gets stuck in open. Since installing it we’ve most likely used more water than previously because of this issue. I wish I could give it 0 stars.
Sweepstakes
Fluidmaster would like the opportunity to learn more about your installation and provide help. Here is a quick tip that may solve your problem; the t...

Does what it’s supposed to.
Would RecommendThis is ideal for the environmentalist in the family. It’s easy to instal and the directions and clear. The small flush is enough water to get the job done and the large flush is your standard flush. The only thing worth noting is that the “small” flush is an up pull rather than a down push so guest in your home most likely will not even know it exists.
Sweepstakes
Broke after 10 flushes
Would Not Recommendpurchased July 2019. Failed within 3 weeks in a bathroom rarely used. Cost per flush probably $3. If you feel you need to purchase it, buy several or just donate money to the manufacturer. I read reviews and thought the quality problem had been fixed. Shame on me. Believe the bad reviews. They are true.
Fluidmaster would like the opportunity to learn more about your experience and provide help. Please contact Fluidmaster’s Technical Service Departme...

Fluidmaster
Would Not RecommendDid not state on box what was needed to install, the handle is terrible (stays in the direction of last flush). If my water bill goes down I will give it 2 or 3 stars.
Verified PurchaserSweepstakes
Fluidmaster would like the opportunity to learn more about your installation experience and provide help. Please contact Fluidmaster’s Technical Ser...

Flush with Pride
Would RecommendThis product was easy to install and works flawlessly, it’s so much quieter than our old system. We have in a bathroom that shares a door with our kids room and we would avoid flushing at night for fear of walking our little ones, but this system allows us to flush with little fear of waking them either at nap time or bedtime.
Verified PurchaserSweepstakes
Not Complete!
Says very plainly on the box. In fact it says it twice. Complete System. Complete Fill and Dual Flush Conversion System,. This system is not complete. It requires a $15 flush valve if you have a Mansfield toilet like me. Instructions call out additional parts if you have a brass flush valve. How can it be complete when it is not? Thanks for wasting my time Fluidmaster. :( :( How can you cheap out and not incude the needed parts? You should get zero stars.
Sweepstakes
The Fluidmaster Duoflush is incompatible with the Mansfield 210/211 Flush valves. Brass flush valves do require an additional part not included with ...

Works like a champ!
Would RecommendThis was easily installed with one caveat, make sure to the gasket compound for sealing the flap valve is spread out or formed to seal the flap valve inlet. The only issue I had was a leak around the gasket compound once I worked it to fit better no more leaking. Otherwise an easy install.
Verified PurchaserSweepstakes
Sticks open sometimes
Would Not RecommendI thought this would solve my issues of the chain falling off or the flapper staying open. No chain but the flapper still doesn't always close.
Verified PurchaserSweepstakes
Do not buy.
Would Not RecommendMy toilet runs all the time. Water leaks by the flapper. I am using more water after installing this. This is also very cheaply made.
Thank you for posting this review. It is possible that the flush valve locknut could be leaking as opposed to the flapper. Most of the time when a le...


Fluidmaster would like the opportunity to learn more about your installation experience and provide help. Please contact Fluidmaster’s Technical Ser...