https://shopsavvy.com/reviews-tldr/korky-flush-ball-for-kohler
Korky Flush Ball for Kohler - ShopSavvy TLDR Review
Pros: Compatible with older Kohler toilets, filling a gap for hard-to-find replacements. Easy one-minute installation that effectively stops leaks.
korkyflushballkohlershopsavvy
https://www.korky.com/parts/flush-valve-replacements/large-3-4-flush-valve-tank-bowl-gasket-kit
Large 3" & 4" Toilet Flush Valve & Tank to Bowl Gasket Kit - Korky
The Adjustable 3 inch Flush Valve and Tank to Bowl Gasket Kit fits specific toilet models made after 1997.
flush valve
https://www.adlerski.cz/korky
Korky | SKI & BIKE ADLER
korkyskibikeadler