Toto THU500S Replacement Flapper for Select 3 Inch Flush Valve Tanks, Red (2 Pack)

Our toilets are about 40 years old and, as to be expected, we have had to replace flappers periodically. We’ve never had any problems with these Toto flappers. They’re genuine Toto parts and come factory sealed. They are easy to install and put an end to “phantom flushes” and slow leaks until normal wear and tear combined with our very hard water causes them to wear out. Don’t waste your money on generics. We tried and found they never quite fit properly and so they didn’t form a good seal. Lesson learned, we went back to Toto parts.

These flappers fit beautifully and were the only solution I needed for my 10 yr old toilet. Easily installed they are well constructed with excellent material. Not aftermarket parts they are official Toto replacement parts.

I'd never done this before, but it was easy enough. I replaced the clapper on a Toto Drake 2 (CST 744S). If it was listed on the back of the package, as many are, I could not find it. The print was too small for me to read, but I took a picture with my camera. In any event, the hardest part of this install was 1) cutting off the old clapper, and 2) getting the chain length the right amount. This new clapper just snaps into place, and other than the two points, the install is super-easy. Overall, if you have two hands you can do this.

Easy to setup according to the directions. The specified chain length was too short for my tank so I lengthened it two links. Now works perfectly. The tabs in this flapper are solid plastic instead of being part of the rubber flapper. That seems to hold the flapper centered on the outlet.

Decided to try this model instead of original because it looks sturdier and will last longer. Difference is the raised center. Installation is easier with the split sides which snap on to the mounting posts. The original lasted 2 years with heavy use so only time will tell.

Seal’s great just like the original one.

Just as advertised. Replaced 2 old dissolving flapper valves. Not having to deal with the float above the flapper is great. Instructions are "OKAY" but not great. Is easy to figure out how to adjust the bottom holes. Kind of trial and error. Works great, perfect fit and easy to install. It should last longer than the toilet.bwc

Had to buy a pair to get one in short order; the single would have taken a month to arrive with the current priorities. Last replaced the flapper in 2014, so these last a while. This is easier to install than the original THU175S because the ears simply clip onto the arms of the flush valve while the original had holes that had to be hooked over the ears on the arms on the valve. Comes with a chart for adjusting it depending on the toilet model, which is usually found on the inside back wall of the tank. Mine required no configuration adjustment. No more tank refilling every few minutes.

Had to replace the flapper on our Toto toilets. This fit perfectly and works like it is supposed to. Was very easy to install.

I bought these for my Toto Ultimate 845 per Toto’s website. They leaked from the second they were installed. Bought the Korky 3060 to try and they have worked….save time and buy them first. Disappointed that a Toto branded replacement would work so poorly.