Description Kohler 83996 Replacement Rubber Gasket (3.375 inch x 2.5 inch) (85mm x 65mm) 85mm x 65mm 3.375 inch Outer Diameter x 2.5 inch Inner Diameter .375 in or 10mm Tall Replacement for Kohler GP83996 2 inch Toilet Flush Valve Gasket Fits Flush Valves. FLUSH VALVE NOT INCLUDED Compatible with Kohler models: Cimarron (#K4634, #K3496, #K3496-RA, #K3496-T, #K3496-TR, #K3497, #K3497-RA, #K3489, #K3489-RA, #K3496-HE, #K3609, #K3609-RA, #K3609-T, #K3609-TR, #K3609-U, #K3609-UR/#98977-0 (Tank #4421)), Devonshire (#K-3457, #K-4619, #K-3503, #K-3488), Gabrielle ( #K3322, #K14257-WS, #K14258WF, #K14258WS), Memoirs (#K3439, #K3462, #K3453, #K3509, #K3511, #K3515, #K3526, #K3533, #K4454, #K4464, #K4491), Portrait ( #K-3490, #K-14178, #K-4590, #K14247, #K3591, #K4607, #K14261, #K3506, #K-3357), Rialto (#K3402, #K3386), Raphael (#K3395 #K3397, #K3397-EB, #K3397BA, #K3397-NA, #K3384, #K3384-2, #K3466, #K3467, #K3398, #K3399), Rosa (#K3323, #K3810-0, #K3811-0)