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Penn Genuine OEM Dual Pressure Control Low Range (240) P70MA-1C Steel is designed for use with non-corrosive refrigerants in HVAC units. It has a high pressure range of 100 to 500 PSIG and a low pressure range of 20 in Hg to 100 PSIG. The switch type is SPST, made of steel material, with a high pressure differential of 55 PSIG and a low pressure differential of 7 to 50 PSIG. It includes a 36-inch capillary with a 1/4-inch flare nut for pressure connection.