Pressure switch, (water level switch), used in some older Simpson dishwashers.
Fits Simpson Riviera, Concorde, Contessa, Simplicity, Vacationer, Serenity & Energy Saver models including model numbers 50B861W, 59B86BW, 50B881BW, 50B961BE, 50B961BC, 50B961BW, 52B961IW, 52B860FW, 52B860BW, 52B860BB, 52B862BW, 52B864BW, 52B866BW, 52B868BW, 52B880BW, 52B880BB, 52B880MW, 52B880MB, 52B960BW, 52B960BB, 52B9601IW, 52B9601IB, 52B961IW, 52B961IC, 52B980BW, 52B980BB, 52B981BW.
Usually this pressure switch is located inside the door.
Easy to fit. Fully guaranteed.