Review on 💯 Ultimate Kohler 1131482 Ultraglide Complete Assembly: Unbeatable Quality and Performance by Ron Mohammed

Replacement valve assembly, perfect fit. Couldn't find it at Ace Hardware or Home Depot. The outside diameter was 1 and 1/8 inch. It has a significantly improved attachment mechanism on the underside of the sink. It was a bear pulling out an old valve assembly. I think the increase in flow noise mentioned in other reviews is due to the smaller diameter plumbing hose that was included. Actually not a big problem.