PB Motor Tech 4.5CFM 1/3HP Single-stage Vacuum Pump, 110V/60Hz Rotary Vane Vacuum Pump for HVAC Systems, Autmotive and Household Air Conditioning Maintenance, No Oil Included

Works as advertised. Nice and quiet operation.

Great price and quality item works very well. Does not come with the oil needed for the pump, but the oil is available on Amazon as well. Don’t pay the price for a high dollar vacuuming pop on this one full full vacuum for a fraction of the cost. I’ve used it many times and see no problem with using it for years to come ,great value.

Seems to work as it should. Very quiet operation. Motor was locked up upon arrival, but this must be common; the instructions tell you the simple steps to fix that. Just remove the rear 3 Phillips screws, pop off the cage and spin the fan a few times after adding oil. No oil included as advertised, so sourcing "vacuum pump oil" locally was an extra $7 and the time to find it. Get a quart, keep it sealed. Pulled vacuum to -26 not -30, but that variance could be a slew of reasons. Definitely better than the Harbor Freight pump that's 3x the price.

Perfect pump for the DIYs. Pulled down to 200 microns using a 1/4" hose. Took a while, but it go there. Real slow from 500-200, but again, if you do this once in a while, and not for a job, what's the hurry. Quiet, and not much vibration.

I needed a pump to vacuum my ac since I was replacing all the o-rings in the Miata. The pump was affordable, it worked perfectly and it's very nice and quiet. So it's all good so far.

This pump is a beast! Super quiet and easy to maintain. Very happy with this tool.

Nice pump

Got this pump for a surge milker that only requires 3 cfm to operate. So i got a 1.5cfm larger because the milker is a bit on the older side. It won't even pull enough vacuum to operate the pulsator! There is now way this thing is pulling anywhere close to 4.5cfm! I will definitely be returning it for a refund!