Review on KOHLER GENUINE GP1083167 Kohler Toilets by Arunprasath Elliott

I bought this replacement fill valve for my Kohler Class 5 toilet because the description clearly states "Used on all Class 5 toilets". However when I received the product there was a warning label on the box saying FOR REPLACEMENT VALVES WITH BLACK STEM - IF GRAY USE REPLACEMENT PART GP1138930. Admittedly my stock is gray and it wasn't worth sending back so I used it as a spare anyway and despite the warning label it works great. Aside from the warning label, I would have thought it was an exact replacement. I gave it 4 stars because Revain's product documentation didn't mention a gray or black wand. Valve.