Review on Korky 5030BP Universal Toilet Flapper by Kevin Cole

The worst part of the install was removing the old valve. I had one of the new American Standard Champion Four toilets with a restrictive flush valve that only flushed about a third of the water out of the tank. Required needle nose and deep nose pliers (preferably with straight jaws) that can extend at least 4" (Channellock 460 16.5" or 480 BIGAZZ 20.5") to remove the bottom fitting and expose the old valve assembly. Had to drive to the hardware store for it. Also, there is a great video on YouTube that has step-by-step installation instructions. If you need to turn the white stripe at the bottom of the ball valve to adjust the water level in the tank, be careful which way you turn. It's actually pretty hard to see the numbers once it's installed.