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

It does what they say

Pumps coal tar sealcoat well 2 1/2 lb of sand per gallon pumped 1200 gallons so far with it seems well built just had to tighten the bolts on the outside of pump they were loose and was shooting out water out the side when testing it sure glade we tested with water and not our asphalt sealer but besides that not a bad 2 in pump

For the price this is a hell of a deal. I’ve used it pretty heavily the last month and a half. No issue so far. Highly recommend

Works like a charm. Using it for oil evacuation servicing generators.

I replaced an electric pump with this, Even though I had to get a air compressor also. In the long run it is a way better pump that moves product and I don't need to worry about the impeller getting bound up.

This is very good pump for the price! Second one purchased in a month. - AM

It jus a decent pump for using probably a year or two

This pump worked well for us. We pump some fairly thick polymers and we use a portable gas powered compressor. It pumps about 10 gallons a minute of the really thick stuff (like Elmer's Glue) and about double that rate with the thinner stuff. Also, my air drier failed and damaged the pump. After much research I found that the air side rebuild kit is ARO 637434 Air Section Service Kit and available on Amazon. If for any reason this kit does not work as expected I will update this review.

I use a lot of these type pumps over the years. I’m very pleased with these at this price range.

The product came very fast and works like we needed it to.