Yellow Jacket 42041 Heat Pump Manifold | R/22/407C/410A | Degrees F

3-1/8″, 1% accuracy high- and low-side gauges that both handle up to 800 psi to read heat pump pressures and transitions in heating or cooling mode Features: Larger dials are bold and easy to read Sliding double “O” ring pistons reduce wear Hi- and lo-side gauges read up to 800 psi Large 3-1/8" gauges feature black steel cases with polycarbonate crystal Other Details: Made in the USA Long-life nylon seats FAQs Does this include hoses? - No, they don't include hoses. Can these gauges be used to test and charge? - Yes,  you can charge refrigerant and test pressures with the gauges.