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Pentair 473175 90/120 Low-Pressure Switch Replacement Pool and Spa Heat Pump

For Pentair Thermalflo heaters, number 16 in the diagram
Low-pressure switch replacement
Fits Pentair ThermalFlo pool and spa heat pump
Also fits Pentair MiniMax Plus pool and spa heat pump models 400, 600, 800, 1000
Measures 50-3/4-inch length by 7/8-inch height by 7/8-inch width