Description Kohler 83888 Replacement Rubber Gasket (3.75 inch x 2.125 inch) (95mm x 54mm) 95mm x 54mm 3.75 inch Outer Diameter x 2.125 inch Inner Diameter .75 inch or 19mm Tall Replacement for Kohler GP83888 2 inch Gasket Fits Flush Valves. FLUSH VALVE NOT INCLUDED Compatible with Kohler Toilet models: Cabernet (#K3401, #K3408), Pillowtalk (#K3378, #K3379), Rialto (K3402, K3386), Rochelle (#K3385 #K-3385-EB & K-3385-C), Rosario (K3434, K3434-X), San Marine (#K-14289, #K-14290, #K-14291, #K-3435, #K-3435-AA, #K-3435-AB, #K-3435-AC, K-3435-DC), San Miguel (#K3406), San Raphael (#K3395 #K3397, #K3397-EB, #K3397BA, #K3397-NA, #K3384, #K3384-2, #K3466, #K3467, #K3398, #K3399)