
I got a valve core replacement tool from China that came with cores and caps that were probably as good as these but I liked them I didn't need as many, so I started running as well. They are slightly better than the regular ones.

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 – High Precision with Protective Case
9 Review

Lichamp Automotive R1234YF Installer Standard
9 Review

🌬️ UView Airlift Cooling Checker 550000
9 Review