Flapper Original Blue 85160 Flapper For Kohler 85160 SKU KOH-GP85160
$7.09
"The original blue flapper with float. It fits the following Kohler tank numbers 4401, 4445, 4447, 4454, 4464, 4605, 4607, 4608, 4619, 4620, and 4621."
Also was used in some Briggs toilets