Review on 🔧 Orion Motor Tech 3.5cfm Vacuum Pump: 1 Stage HVAC Vacuum Pump for R12 R22 R134a R410a Systems - 1/4hp, 38 Micron - Ideal for Air Conditioner Servicing, Resin Degassing, with Oil Included by Justin Newport

it works well. I ordered 3 different cheap pumps from Amazon and had to send them all back. Everyone had strange problems. One had metal debris. In the oil reservoir, one of them sounded like it was making metal-to-metal contact, and both didn't sound like a normal quality vacuum pump when on. This sound sounds right and has a higher quality. I've used it on several car air conditioners and it works flawlessly, in fact it pulls full vacuum faster than my old professional air conditioner I had. No complaints. Thanks