This adapter will only fit select models of Robinair vacuum pumps and nothing else. It has a 1/4 male thread inlet already used in pumps old and new. It also has a 1/2 Acme inlet to connect a 134a Acme vacuum hose to a vacuum pump. Each inlet comes with a plastic cap, and the larger, flared end is what actually attaches to your vacuum pump. I'm giving the seller 3 stars for a poor description and not rating the item as it turned out to be something I don't need and a waste of money which I've heard is still in high demand as this one damn thing "coin" means " was invented by our Roman ancestors (I tinkkk).
Robust Robinair (RG3) Portable Refrigerant Recovery Machine, 115V, 60Hz -Efficiently Recovers Liquid and Vapor Refrigerant
9 Review
💪 Enhanced Universal R134A Valve Core Remover/Installer by Mastercool (81290)
9 Review
💨 Robinair (15115) VacuMaster Single Stage Vacuum Pump - For Efficient Single-Stage Vacuuming, Delivers 1.5 CFM
9 Review
Enhanced Elitech ILD-300 Infrared Refrigerant Leak Detector: Advanced HVAC Halogen Tester with Selectable Gas Functionality
9 Review
Rechargeable screwdriver OA-3,6F (433.0.2.00), 3.6 V, 1.3 Ah Li-ion, blister
46 Review
DVR 70MAI Dash Cam Pro Plus+, black (A500S), black
87 Review
Tool set Ombra OMT82S12, 82 pcs, brown
22 Review
Xiaomi Mijia Ratchet Screwdriver 16 in 1 Screwdriver with Interchangeable Bits, 10 pcs, Black
22 Review