Flush Valve Seal for Mansfield, 3 Pack Upgraded Silicone Material Toilet Tank Gasket Replacement Parts for 210 and 211, Equivalent to 630-0030

Until I bought my house last year, I'd never heard of Mansfield toilets. This house has two of them, and one developed a slow leak, so I bought these gaskets.As a first timer to replacing Manfield toilet gaskets, a few thoughts:1. It's easy to replace the gasket! Search on YouTube for a short video if you're not familiar with the process.2. There are two indented rings that you can install the gasket on, the top indented ring and the lower indented ring/area. The gasket goes into the top indentation, which is the easier place to put the gasket.3. After installing the gasket, the toilet slowly leaked. Bummed, I thought that I better buy the Korky gaskets. But I learned a trick for any Mansfield gasket replacement: Once the gasket is installed, rotate it a few times for a better seal. That stopped the new gasket's slow leak.I don't know how long these gaskets will work, but so far, I'm happy after every flush & fill!

Flush valve seal fits and works.

Needed two of these four in one weekend. Stopped the leaks in both from the old gaskets and was easy to install. I can’t tell on quality but so far the last several months nothing has happened since installing them.

The new seal stopped the tank leaking slowly into the bowl and could be installed with no major disassembly

My house has all Mansfield toilets. At first I didn't like them. Once I found out how easy it is to replace this gasket, I really like them now. Much easier then any other toilet I have had. NOTE: read the directions closely. If you don't get the seal in the correct groove, it will still leak. Changing one of these seals only takes five minutes or less.

I had high hopes for this product since it was affordable and looked well-made. Unfortunately, it didn’t solve the problem. After installing, water continued leaking from the tank into the bowl. I ended up having to purchase a different seal that worked properly. Overall, I wouldn’t recommend this product.

Finally found a toilet ring.that fits right. I've been to all the upper end home stores and every ring I bought was a pain to form fit amd either disnt last or I had to reset. I don't know the longevity of these yet...but they were the easiest and best fit I've found in years

Surprisingly, my local big box hardware stores didn’t have any of these in stock. Ended up picking some up from Ace after placing the Amazon order but decided not to cancel the order and just having a couple in case of emergency. Good thing, the one from Ace didn’t fit well at all and actually still left the toilet with a small leak. Nothing major, but still not sealed off completely. Decided to use the ones off Amazon and it the leak was solved! Comparing them side to side you can see the difference in thickness and fit.