VIVOHOME 110V 1/2 HP 5 CFM Dual Stage Rotary Vane HVAC Air Vacuum Pump with Oil Bottle

The pump arrived packaged well and oil free. I’m guessing based on reviews there were some at some point that the supplied oil leaked from the bottles? Comes with enough oil to fill to recommended level plus enough to change it at least once-possibly twice. Worked great vacuuming the a/c system on my 2015 Dodge Durango which was my first ever attempt at recharging auto a/c on my own after replacing the condenser which was taken out by road debris getting through the grill. No complaints on the vacuum. Seems to be a solid unit, appears built well, and operates as if it’s well made too. I bought the bigger two stage in case of a need for other possible applications in the future.

Replace the fuel seals on my AC system on my vehicle. I ended up losing all the freon due to these leaks. So instead of taking it somewhere I have a set of gauges but I needed a vacuum pump to pull vacuum on the system and make sure it has no more leaks and to dry it out. I settled on this pump I know it's only a quarter horsepower but it does the job. It pumped down the system fairly quickly in about 15 minutes but I let it run for over an hour to ensure it pulled a heavy vacuum to help dry out the system. I let the system sit for about 5 hours make sure I had no leaks. I fill the system with freon and it works great. The nice thing about this pump is it comes with the oil, and there are two type of fittings on the pump one for r22 and one for r143a. The pump construction seems pretty durable although I wouldn't drop it it will probably snap something. The oil is easy to drain and the side Glass is nice so you can see any contamination in the oil. Just make sure when you replace the oil you you vacuum pump oil of a good quality. I imagine after a few uses the oil will become contaminated with moisture. Otherwise this pump work fantastic for my intermittent use for the home mechanic

Works great! Works just as good as much more expensive vacuum pumps that I have had over the years. Would definitely recommend this to others

Good product

It pulled a strong vacuum and did it quietly and for cheap

Bought incase I need it runs well just haven’t gave it a chance to prove it’s self yet

Works like a pro

Caveat emptor!!!Worked when 1st purchased. Put up until next season and found oil had leaked out. Literally the very next year. I assume something cracked or failed after the first use and sat and leaked out during the time it wasn't in use. Not wasting my time trying to find the leak or repair it simply because of the inexpensive the pump is! You get what you pay for I guess! I would spend your money on a different brand of I were you!