Free Shipping and BOPIS


Model # 550DFRK-3

Internet # 204667552

Store SKU # 1000028233

Duo Flush System Toilet Converter

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

$29.98 /each




Model # 550DFRK-3

Internet # 204667552

Store SKU # 1000028233

The Fluidmaster Duo Flush System gives you a tool to help save more water than any other dual flush system on the market. The Dual Flush System retrofits into any 2 in. toilet tank, and is proven to use up to 45% less water than the original tank parts. It also has been shown to improve flushing power on the full flush, so you will actually see better performance than before. It comes complete with a high refill fill valve to insure consistent flushes every single time. A dual flush tank lever is included with this system.

  • Uses up to 45% less water
  • Converts your existing toilet to dual flush technology
  • Durable silicone seal lasts for years
  • Fully adjustable full and half flush
  • Automatically saves water
  • Delivers precise and powerful flushing action
  • Fully adjustable for a wide variety of settings
  • Height requirement in tank is a minimum of 8 in. for installation


Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Hardware Included 
Plumbing Part Type 
Toilet Kit 
Warranty / Certifications
Manufacturer Warranty 
5-year warranty 


Rated 2.3 out of 5 by 83 reviewers.
Rated 1.0 out of 5.0 by Broken After One Year - Don't Buy The install was easy and worked great for a year. Then the metal wire broke, making the toilet totally unflushable and I need to replace the whole system. Surprising that one of the few metal parts is what ultimately breaks. Any potential money savings and convenience are gone if I have to replace it every year. April 26, 2015
Rated 1.0 out of 5.0 by Buying this is like flushing your money... I bought 2 of these systems for both toilets in my house. They both lasted less than 2 years. The first broke at a year and a half. The cable between the custom handle and the "flapper part" of the system snapped and I had to replace them. I have gone back to the basic flush system (less expensive) with an adjustable flappers. As a note - you can get a replacement handle (under warranty) *only* from Fluidmaster support - and be without a toilet until the new part arrives... As an additional note - the only ones that know that the toilet can save water are your family (unless you tell each of your guests that a there is a low flow flush option). October 18, 2015
Rated 1.0 out of 5.0 by Don't buy it. 1 Year Broken flush cable. Full toilet no way to flush. Can 't do ZERO STARS After one year the cable end on the flush actuator failed. Now I have the joy of figuring out how to remove the device and convert it back to a standard flush. $30.00 plus cost of replacing parts I tossed from the old rig that didn't need replacement and I can't even flush it down the toilet. Have to admit I questioned the quality of the product at installation, CHEAP construction, should have gone with the gut and returned it. Should have stuck with what had worked for 14 years and replaced a $2.00 Flapper. September 25, 2014
Rated 4.0 out of 5.0 by Good water saving device with 2 flush levels The instructions are rather complicated and to do the install right takes about 45 minutes. Longer than the stated 30 minutes. But that also includes adjusting the levels. When you push the handle down, it does a low water flush and when you pull the handle up it does a high water flush. I haven't seen any impact on my water bill, but toilet flushing probably doesn't use as much water as other things. Once you get it installed right and the levels adjusted it seems like a good product. October 12, 2013
Rated 1.0 out of 5.0 by Nice 2 flush, but handle broke. Makes it useless. After about 3 months the handle broke. No one has a replacement. It was made of plastic. $33 down the toilet. August 4, 2015
Rated 4.0 out of 5.0 by Not universal for Koehler WC I got the Dual Flush for my kohler toilet. The kit say it fits most toilets but not this one. The kohler has a special vertical valve assembly. I have added a picture to demonstrate the type valve I'm talking about. I went back and pick up a standard valve assembly. After that fitting the dual flush to the standard was very quick and easy. It just snaps on. The flush handle replaces the old with ease. It is good for stoping leaks and very quiet. December 7, 2013
Rated 1.0 out of 5.0 by Over 3 years of use this thing has left us hanging with a non working toilet TWICE This thing is badly engineered. The line from the duo flush to the handle rusts or breaks every year or so and makes the toilet unflushable, even manually. We have a single bathroom household so this is NOT okay by any means. The first time we called the company and they sent a replacement part, but when it was just the plastic part of the flush line we could still pull it inside the tank to flush until the new part arrived. This time we need to go spend money TODAY on a new kit - if there is at all any other option in the store we will buy that and never again the duo flush. July 28, 2015
Rated 1.0 out of 5.0 by What happens when it breaks? We moved into a house with one of these systems installed. One day the toilet stopped flushing, and unlike with a flapper system, there's no way to reach in and make it flush and replace the broken part when you have time. You have to drop whatever you're doing and spend half a day replacing all the parts. March 31, 2015
  • 2015-11-26 T09:56:17.302-06:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_83, tr_83
  • loc_en_US, sid_204667552, prod, sort_default
2 3 4 >>