Low pressure: 0120psi -18.5kg/cm. Knurled fitting and twist valves Specifications. 1 x Tyre Valve Stem Removal Wrench. 1 x Valve Bottle Opener. 1 x Refrigeration Charging Hose.The item "Car HVAC R134a Refrigeration Air Conditioning H/L Manifold Gauge Set" is in sale since Tuesday, March 10, 2020. This item is in the category "Business & Industrial\HVAC & Refrigeration\HVAC & Refrigeration Tools\HVAC/R Gauges & Probes". The seller is "jamac0708" and is located in China. This item can be shipped worldwide.