The Yellow Jacket 49002 Low Side Gauge is a professional-grade 2-1/2 inch compound gauge designed for long-term field use

Whether used for field replacement or OEM applications in systems up to 20 tons

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Durable Construction: Built to withstand high-cycle environments

and Janitrol split-system air conditioners and heat pumps that require a low-pressure safety limit

Johnson Controls P170AA-400 Pressure Control Els PW 17895 The Yellow Jacket 49002 LowThe Johnson Controls P170AA 400 is a high performance high pressure cutout control designed for heavy duty commercial refrigeration and HVAC applications. This SPST pressure switch features an "Open Low" action, making it a standard choice for condenser fan cycling control and high pressure system protection. Built with a rugged NEMA 1 all steel enclosure, the P170AA 400 provides reliable operation for systems utilizing non corrosive refrigerants. It