ZENY 3.5 CFM Single-Stage Rotary Vane Vacuum Pump for HVAC Air Conditioner Refrigerant and Air Tool - 5 Pa, 1/4 HP

Bryan Brumley: Needed vacuum pump for residential ac install. Pulled to 280 micron in less than 10 minutes, well below the minimum of 500. Only used once, so not sure about long-term longevity.

United States on Aug 24, 2023

Takeo: Bought the affordable pump to do AC work at home, used it 3 times so far and works great! The money I am saving has already paid for the pump! Sure you can rent pumps for free at your local parts store, but having to pick it up and then drop it back off is time, and when your time is limited, it's nice to have your own pump. I'll probably use it again for future AC repairs.

United States on Aug 08, 2023

Mike Qian: Good

United States on Jul 23, 2023

river: The product is average, with satisfactory suction power, low noise, sufficient vacuum pump oil, and user-friendly operation. However, it does not have the functionality that my friends mentioned, which allows it to be used as both a vacuum pump and an air compressor.

United States on Jun 06, 2023

Mark A.: Only used a few times but performed great. Not sure if it could be applied to commercial use.

Canada on Aug 02, 2021

Roger: Difficult to rate, because of my issue, but had I not had the issue I probably would have kept the unit and rated it higher. I was disappointed that this unit went off on overload twice, so I felt I couldn't trust it. Maybe I just had bad luck. It looked good, and well made. It did run and pull a vacuum, but I didn't have confidence that it would have a long life, or go off on overload and not re-set.

Canada on Jun 19, 2021

Marc Audet: Légère et compacte, parfait pour service résidentiel

Canada on Jun 18, 2021

Amazon Customer: Works greats pulls a great vacuum and was a good price

Canada on Aug 20, 2020

brockbrock: The media could not be loaded.  Every winemaker should get this vacuum pump.

If you aren't familiar with Wine Degassing, you can read more online, but in a nutshell, "degassing" wine removes the CO2 that is created when sugar converts to alcohol. When you leave CO2 in wine, it tastes bubbly, and leaves a foul flavor.

I've tried several other products to degas my wine before looking at an actual vacuum pump:

* A handheld vacuum, often called Wine Pump or Vacu Vin. This is a six-inch tall pump with a rubber stopper designed for removing the air from a single bottle of wine. This works, but only pulls up small bubbles and takes a lot of effort to get a very small result.
* A metal rod wine whip. This is a straight metal rod with two plastic flaps at the end that you attach to a power drill and stick into your wine bucket or carboy to spin the wine around and stir up the bubbles. This was essentially, for me, an electric version of the Vacu Vin. Not much of an improvement, and took a lot of time.
* A Wine Whip degasser. This is a C-shaped plastic rod (much like the metal rod) that you also attach to a power drill and stick into your wine bucket or...

United States on Jan 16, 2016