
Yes, there is a high side and a low side, but the Schrader tool inside both is the same size. There has to be one less and one more. The workmanship is a bit broken and the rod inside doesn't go in straight. Also, it won't stick to the valve unless you put some lube on it to hang on the valve. Bad quality control.

π¬οΈ UView Airlift Cooling Checker 550000
9 Review

Enhanced Elitech ILD-300 Infrared Refrigerant Leak Detector: Advanced HVAC Halogen Tester with Selectable Gas Functionality
9 Review

VIVOHOME 220LB HVAC Electronic Digital Refrigerant Charging Weight Scale β High Precision with Protective Case
9 Review

Robust Robinair (RG3) Portable Refrigerant Recovery Machine, 115V, 60Hz -Efficiently Recovers Liquid and Vapor Refrigerant
9 Review