Specific fit for Kohler Flush Ball. Fits Kohler models: Palarre (3383), Rialto (3402), Rochelle (3385), San Miguel (3406) and San Raphael (3395, 3397), Bolton (3450, 3475, 4505, 4509), Cayuga (3440, 4509), Evensong (14143), Highline (3527, 3518, 4518, 4524