Both fittings are leaking. Pulling a vacuum and checking for leaks is useless. The fitting on the bottom actually leaked quite a bit, I lost about $50 on r1234 freon before realizing they didn't fit properly. Have you ever seen a product of such poor quality but so beautiful at the same time? I would probably look elsewhere for accessories.
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
π UView 560000 Combustion Leak Tester: A Reliable Tool for Efficient Diagnosis
9 Review
Rechargeable screwdriver OA-3,6F (433.0.2.00), 3.6 V, 1.3 Ah Li-ion, blister
46 Review
Xiaomi Mijia Ratchet Screwdriver 16 in 1 Screwdriver with Interchangeable Bits, 10 pcs, Black
22 Review
DVR 70MAI Dash Cam Pro Plus+, black (A500S), black
87 Review
Tool set Ombra OMT82S12, 82 pcs, brown
22 Review