Korky450BP Flush Valve Seal For American Standard and Eljer Toilet Repairs - Replaces American Standard part 730111-0070A - Made in USA

Excellent product and fit precisely! My toilet no longer self flushes! :D

I have an American Standard Champion 4 toilet. This thing is driving me crazy because the darn gasket periodically leaks. I first tried replacement with an off brand gasket, but that was a flop. I have purchased the American Standard part https://www.amazon.com/American-Standard-7301111-0070A-Flush-Valve/dp/B002J3SG0W/ but have been very disappointed that it starts leaking again within 6 months to a year. So I had high hopes for this Korky. But it failed right off the bat. I know how to install these (God knows that I get enough practice), but the toilet kept leaking intermittently with the brand new Korky gasket. So, back to the American Standard part. Fortunately I had purchased a spare last time, so I put in the OEM part and the leak immediately stopped, at least for now. (But the leak in this toilet is like The Terminator. It will be back....)

This is worthless without the o-ring for American Standard. Purchased the Korky brand based on claims of longer lasting, installed it and during installation wondered about the o-ring. After installation the toilet still leaked.Ordered OEM seal that included o-ring and works perfectly.Whoever at Korky decided to market this and not include an O-ring should be strung up and shot with cat dung.Total waste of money. I hate being ripped off.

Leak returned less than months after install. The factory one makes it almost a year with Chicago water. I'm going back to the American Standard version.

Be careful where you buy one of these. The price varies considerably. The one that came with the toilet developed a leak due to water blisters formed between the two layers of material. Apparently, they are made of a top and bottom that is sealed together. The original, apparently, was not perfectly sealed and 12 inches of head pressure was enough to allow water to force itself between the layers and to lift the flush valve enough to make it leak. I have not had this one long enough to know if it is any better made than the original.