Whirlpool 776594 KNOB-CNTRL THIS KEY WORKS FOR ANY 15 INCH WHIRLPOOL OR KITCHENAID COMPACTOR. THE KEY LOCKS THE COMPACTOR TO KEEP KIDS AND PETS FROM OUT OF THE TRASH. Works with the following models: Whirlpool 4KUCC150S0, Whirlpool 4KUCC150S1, Whirlpool 4KUCC150S2 Whirlpool 4KUCC151T0, Whirlpool 4KUCC151T1, Whirlpool 4KUCC151T4, Whirlpool 4KUCS181T0