VEVOR Air-Operated Double Diaphragm Pump 1 inch Inlet Outlet Aluminum 35 GPM Max 120PSI, Nitrile Diaphragm, QBY4-25L-1inch-35

For a small pump it works very well. I pumped tire ballast out of 2 tractor tires , and refilled 1 tire , it did it with ease. I was very happy ,for an inexpensive pump it worked great.

Perfect! couldnt ask for a quicker, more efficient pump! Would defiantly purchase and recommend someone to buy!

Works great!

Junk. Didn't attempt to work at all.

This thing pumps oil quick.

I have a long asphalt driveway that I have been sealing with the asphalt sealer from Lowes and Home Depot. I thin the sealer with 25%-50% water depending on the brand of sealer, and spray with a soap nozzle on a pressure washer wand. Too thin and it dribbles a bit, too thick and it splatters, but this pump has been very reliable. With all the trial and error, this pump has been the most consistent part of the project. Doesn't use too much air. Not too loud. Sometimes when I stop the spray, the pump bleeds air so I added a ball valve to the air inlet.

Worked great for first week. By week two of pumping rusty water it quit working.

I’m using this pump as a suction pump to empty barrels of used motor oil. No complaints. Works well for my application