Korky 87 Fixed Height 2-Inch Flush Valve and Premium Flapper

I wanted a one piece, non-adjustable tall overflow flush valve with a round upper end so that I can increase the amount of water per flush in order to keep the sewer line to the septic tank free of build-up...and this meets the requirement.

Replaced 20+ year old valve. The Korky valve installed easy, was simple to setup and works as it should. I would use again.

Work great

I tried flush valves from the 2 major manufacturers that allow the height to be adjusted, and the both leaked at the joint of the inner and outer tube. I cut this fixed height valve to the length I needed, which solved that problem. However I deducted one star because unlike the other flush valves, you don't get any bolts, gaskets, or overflow fittings with this one. Only what is shown in the photo.

Noticed the old valve had two gaskets and this had only one. First flush showed me why, water flooded onto the floor. DO NOT BUY unless you purchase the extra gasket.

This Korky product looks well designed but is an example of "Most Engineered" versus Best Engineered. The toilet was from the 1980's and the old standpipe I later discovered was probably Ace Hardware. The Korky retaining nut was too large diameter and too tall (.6") to fit into the recess on the bowl of my toilet. I was able to use my old nut (1/4" tall) and force it on - Korky uses "Buttress Threads" versus conventional threads and it work now..... Also the recommended Korky tank-bowl gasket is 3/4" tall and cannot compress as intended. A new Ace 3/8" gasket worked fine. Wasted a LOT of time and paid extra money for extra parts.