GOFLAMEA/C AC Air Conditioning System Tool Auto 4.2CFM Penumatic Air Operated Vacuum Pump Conditioner

Cheap? Yeah. Effective? Absolutely. If you have a air compressor that can steady give you 90 psi, this will pull plenty of vacuum for 99% of car and truck ac systems. I gave it an hour and it pulled -30. Waited an hour and filled er up and I’ll tell ya, that ac will freeze you out of the truck. Well worth the couple bucks.

This vaccum wok's good just need a a little stronger air compressor.Update I gave five star because the good respond and awesome customer service.

This didn't do what it is was supposed to and would require a massive compressor to get any vacuum. I hooked up to a 60 gallon 5hp compressor at the recommended psi and the blow-by far exceeded the compressors ability to keep up. didn't work for me and I don't see how it ever would. created no vacuum.

Great economic alternative to purchasing a vacuum pump. Pulls system down to 26” of vacuum

For the value of this product it is a great AC vacuum machine done a great job