Have been using Fluidmaster duo flush for over a decade. The older design the cable would eventually break, but these units would last well past the 5 year warranty. People do not realize that pretty much no toilet components last forever due to water conditions. Most municipal water in the US is chlorinated and is considered hard water. There’s also areas with the opposite such as acidic water. Either way seals and mechanisms wear out. Even the best Korky flapper with 10 year warranty will eventually fail. Anyway I easily get over 5 years out of these units. Usually the mechanical parts break, the plastics.Ok $6 or less a year which pays for itself with water savings. What’s important is to follow the directions and have some clue what you are doing. You need to adjust the fill and 1 and 2 flush volumes which will vary by toilet. Once you are dialed in, you will notice the savings within months. No more full flush for urine. No more over flush, over fill waste. No more replacing failed flappers every few years. Even with good flappers, because of high chlorine in my water flappers would be done by year 3, that’s $10+ dollars every 3 years plus water waste from leaks that probably went on for months.There’s other conversion kits out there, but opinion this is the best. They often make design improvements such as the cable and the flush handle mechanism. You’re lowering your water bill and use and still getting adequate flushing.

It worked flawlessly until the peace connecting the lever to internal mechanism broke right after 5year warranty expired. I contacted the company and they sent me a replacement peace.

Watch the installation video if the written instructions are unclear - I would recommend watching it in any case. Easy installation, the only thing to watch is making sure the plumber's putty ring has a good seal if you're using the adapter. I would recommend placing it, giving it a slight push, and then taking it out to examine the imprint. If it's good all the way around, you're good to go. If not, massage the putty into place and try again. Give it a good firm push to make sure it's seated when you're ready to install the adapter. Other than that, easy-peasy-lemon-squeezy! Good luck!

El producto ofrece mucho, lamentablemente en la descripción de la publicación no hay información suficiente para ver si es compatible o se ajusta a mis necesidades.

The price is right for a product that works

I've bought these same products before for my previous house and they worked great for many years. They've made some improvements to design. They do save you on your water bill if you adjust them correctly as per directions. So given my positive history with this company and product, I bought 2 more units to install in our new house.

En el primer sanitario que lo quise instalar resulta que no es compatible con la válvula de descarga, así que desarmé el del segundo sanitario y por suerte es de la misma marca que éste repuesto, el resto fue seguir las instrucciones del folleto que viene adjunto.

Llegó abierta la bolsa del artículo y llegó dañado...

Installation was a breeze. I spent 10 minutes skimming over the instructions, and probably 30 minutes for installation and adjustment. Adjustment takes the longest amount of time, because you have to keep flushing the toilet and waiting for it to refill before testing the next adjustment.I don't understand why some reviewers said that it took them so long to read the instructions and install the unit. I have lots of experience with replacing toilet fill valves and such, so maybe it was easier for me than it was for some people.As one reviewer mentioned, you have to make sure that you get the most current version of this product. I chose the lowest priced option with free Prime shipping, and the product came from the seller named "Innovative Retail Market". I received the old version of the product from this seller, so I cannot recommend them. Fluid Master happily replaced it with the newer model 550DFRK-1 (the -1 indicates that it is the newer version).I used my water meter to measure how much water my toilet used before I installed this unit. It used 1.9 gallons per flush (gpf). This is slightly more than the rated 1.6gpf printed on the toilet. I suspect that the difference has to do with the fact that the old fill valve over-filled the bowl a little, which allows more water to go down the drain.When I installed the unit and new fill valve, I set the water level in the tank at the same height where it was before. This resulted in unsatisfactory results. Even with both adjustment dials turned to MAX, the toilet would not flush. So, I adjusted the new fill valve to fill the tank to the "max fill" line, which is engraved into the inside of the tank. This allowed me to adjust the dials to allow a complete flush with both liquid ("half flush") and solid ("full flush") waste.The liquid adjustment was easy... if three sheets of toilet paper go down, the adjustment is correct. The solid adjustment took an extra day or two of using the toilet. I had to increase the solid adjustment once, in order to ensure a complete flush. I guess that was an extra-high-fiber day. LOL I eat lots of vegetables. I have been using it now for almost a week, and it works perfectly.As they say, the proof is in the pudding. So, I wanted to measure the water savings. Your results will vary, because each model of toilet has a different flush performance. My toilets are not the best performing water-saving toilets I've ever owned, but I'm a renter now... and I think my landlord would probably get upset if I replaced the whole toilet!With my current settings, a "full flush" uses 1.6 gallons, exactly what the toilet is rated to use. This is a savings of 0.3gpf, compared to what the toilet used previously. A "half flush" uses 1.3 gallons. While this isn't a huge difference (certainly not "half"), it is something... and would probably be better with a toilet which has a better flush performance score (yes, that's actually a thing).I used to own my home, and I installed toilets which had a flush performance of 10.0 (the highest possible). I think that those toilets would probably flush liquids with far less than 1.3 gallons. Unfortunately, I never installed a duo-flush valve in them. At my new place of residence, the cost of water is double what it was at my old place... so I'm looking at ways to save water.So... the important question is: "Is it worth the money to buy this device?" ...I estimate that this unit will save me about 50 gallons per person, per month. At my current cost of water, that's about $1.00 per person, per month. Since I only paid $18.99 for this thing, it will pay for itself in:19 months in a 1-person household9.5 months in a 2-person household6.33 months in a 3-person household4.75 months in a 4-person householdetcetera ...Of course, if you buy two or three of them for all of the toilets in your house, you need to double or triple the number of months I mentioned above.In my case, yes... it was worth the money. I would have liked to see a lower gpf for liquid flushes, but... overall.. I'm satisfied.Oh, I should mention something else. Some reviewers complained that the handle seemed flimsy. I disagree. I think it is sturdy enough. Maybe they didn't tighten it enough, allowing it to wobble in the hole?