KOHLER K-12643 Greenwich 20-3/4" x 18-1/4" wall-mount/concealed arm carrier bathroom sink with single faucet hole, drilled for fixture-supported knee-action valveMade from premium materials that withstand high volume usage, the Greenwich wall mount lavatory is an ideal choice for commercial applications. This model features a single hole faucet drilling, a wall hanger and drillings for a concealed arm carrier and a fixture supported knee control. 20 3 4"L x 18 1 4"W Single hole drilling Includes wall hanger Drilled for concealed arm carrier and fixture supported knee control fitting Additional Resources: Spec