This manifold gauge set works for applications of the R-134A refrigerant A/C system. It comes with two adjustable quick couplers and three colored hoses.
Air-conditioning plumbing kit Great diagnostic tools For use with R-134A refrigerant Low pressure: 0
120psi -18.5kg/cm High pressure: 0 500psi 035kg/cm Knurled fitting and twist valves Specifications Blue(Low) Guage: 0-120psi Blue Hose: 1/4 in. FFL x 50 in Read (high) Guage: 0-500psi Red Hose: 1/4 In. FFL x 50 in yellow Hose: 1/2 in. ACME x 50 in Guage Accuracy: +/- 2%