I've used this with about 10 canisters of refrigerant so far without any problems. Before using it I loosened and re-tightened the Schrader valves on the R12 and R134a fittings and had no problem holding pressure at the tap. I left the bottle on the faucet connected to the pressure gauges for over a week and at the end of the week I didn't notice a drop in pressure.
πͺ Enhanced Universal R134A Valve Core Remover/Installer by Mastercool (81290)
9 Review
π¨ Robinair (15115) VacuMaster Single Stage Vacuum Pump - For Efficient Single-Stage Vacuuming, Delivers 1.5 CFM
9 Review
Robust Robinair (RG3) Portable Refrigerant Recovery Machine, 115V, 60Hz -Efficiently Recovers Liquid and Vapor Refrigerant
9 Review
Lichamp Automotive R1234YF Installer Standard
9 Review
DVR 70MAI Dash Cam Pro Plus+, black (A500S), black
87 Review
Bit and socket set Stels Tool set, 1/2", 1/4", CrV, plastic case 94 pcs, Stels, 94 pcs, black
46 Review
Xiaomi Mi x Mijia Wiha Precision Screwdriver Set (DZN4000CN), 25 pcs
34 Review
Rechargeable screwdriver OA-3,6F (433.0.2.00), 3.6 V, 1.3 Ah Li-ion, blister
46 Review