Review on 🔧 JIFETOR Automotive Cooling System Vacuum Purge Radiator Coolant Refill Tool Kit | Pneumatic Vacuum Antifreeze Change Filler Set for Car, Van, SUV, Truck | Includes 4 Sizes Adapter Case Hose by Predrag Hall

Bottom line: if you buy this you'll have to spend 30 minutes taking everything apart and putting teflon tape on the threads. Did enough research and most people said it was "good bang for your buck". I more or less agree with this statement. The pressure garage appears to be a snug fit, the stretchy O-ring seals well, all fittings appear to be tight when plugged in. However when I created a vacuum I didn't get anywhere near -0.8 BAR (24 cmHg). It would get close and then suck help from somewhere. That meant I had to make sure my cooling system wasn't compromised. Pains. I then disassembled the tool and used teflon tape. After that everything worked as expected. I have circled the fittings in red in the attached image. I'm not sure I'll be returning the tool and asking for a replacement. Maybe I got a bad tool, maybe bad workmanship. I will contact the manufacturer and let them know.