Fluidmaster 502P21 PerforMAX Universal Water-Saving Long Life Toilet Flapper for 2-Inch Flush Valves, Adjustable Solid Frame Design, Easy Install, Red, 1 pack

I recently purchased the Fluidmaster 502P21 PerforMAX Toilet Flapper to fix a constantly running toilet, and I couldn’t be happier with the results. Installation was a breeze — I had it swapped out and working in under 10 minutes without any tools or plumbing experience. The instructions were clear, and the solid frame design made it easy to align and secure in place. One of the best features is the adjustable dial, which allowed me to fine-tune the flush rate for better water efficiency. After making a few quick adjustments, I noticed an immediate reduction in water usage without sacrificing flushing performance. It's a great water-saving solution that’s both affordable and effective. The build quality is impressive too. The flapper feels durable and well-made, with a strong seal that eliminated the leaks I was dealing with. Plus, it fits standard 2-inch flush valves, so it’s truly universal for most toilets. Overall, the Fluidmaster 502P21 is a small investment that delivers big results. If you're dealing with a leaky or inefficient toilet, this is a simple, reliable upgrade that can save water and money. Highly recommended!

Fast mail service.....good price....will order again....

I bought this because one of our toilets would randomly keep running and it was driving me insane. I kept jiggling the handle, adjusting things inside the tank, and trying temporary fixes until I finally decided to just replace the flapper. Problem solved immediately. Installation was straightforward and only took a few minutes. Once installed, the toilet stopped constantly running and has been working normally ever since. Sometimes it’s amazing how such a small inexpensive part can completely fix an issue that’s wasting water and becoming annoying every single day. The material feels much better than some of the cheap generic flappers I’ve used in the past and it created a solid seal right away without needing a bunch of tweaking or adjustment. Honestly, if your toilet keeps randomly running or cycling on and off, there’s a good chance your flapper is the issue and this was an easy inexpensive fix that worked perfectly for me.

Good for the price

The Fluidmaster 502P21 works great. I had to troubleshoot it a couple of times at first, but that ended up being my chain adjustment, not a product issue. Once I set the chain right, it flushed perfectly. My toilet used to do those annoying “midnight runs” because the old flapper seeped and let water run all day and night. The 502P21 completely stopped that. No more random refills, no more wasted water. If you’re dealing with water seeping around the flapper and you’ve already wasted money on other brands that didn’t fix the problem, I definitely recommend this one. It solved the issue and everything’s working fine now.

Leaky Flapper Easy to replace. I couldn't figure out what was wrong because the leak was so small that the tank would slowly drain and then not refill. Sometimes they leak and it continuously runs and you know either clean or replace the flapper. This was so slow that i had to put a tiny bit of koolaid in the tank to color the water and in about an hour i could see the leak in the bowl.. replaced the flapper and no more leaks. Their Total Rebuild Kits are great too $25 and rebuild the entire tank and a new handle. Worth the money and easy to do yourself.

Just what I needed. I specifically needed a clip-on flapper (no room to slide the connector over a post). Works fine, at a reasonable cost.

Fit and worked great but only lasted about 10 months. The rubber deformed into a "wave" pattern and the seal was lost.

Perfect replacement. If you're looking at this I imagine you know what it is. The old one had become hard over time and so didn't form a good seal. As a result there was a constant leak from cistern into toilet bowl. This in turn meant a fill up every 10 minutes or so which irritated me and was also a waste of water. Replaced it in about 30 seconds - not fiddly at all and works great. Lets see how long this one lasts. If it's less than 2 years I'll come back and knock a star off.

It is exactly as depicted. The plastic is fairly thick for what it is, so considering its placement I think it will last a very very long time. The one we had prior was entirely made of rubber and it had sagged and torn over time, leaving an endless flow of water that racked up an extra $50/m on our city bill. Putting this on was SUPER easy, I am a woman (and certainly not a plumber) and I had no problem clicking it into place or attaching the chain to the lever. I love the price, very fair. As mentioned, the top cap is plastic, but I find that beneficial. Firstly, it will not sag as the old one did. Secondly, it makes movement easy, as its quick to lift and quick to drop. Mind you this toilet is in my young children's room, so they need something that doesnt require excess effort to flush. Highly recommend.

Le quedo muy bien al tanque de agua . No hemos tenido problemas , fácil instalación

Excelente, una muy buena solución

Perfect replacement for my existing one.