VIVOSUN317-1750GPH Commercial Air Pump 20W-102W, 18L-110L/min, 6-12 Outlets Air Pumps for Aquarium and Hydroponic Systems

Product arrived in a totaled Amazon box, as they no longer back with air pockets.But the pump survived unscathed, even though clearly dropped. I also dropped it from 6ft high onto a hard floor when it toppled off the shelf while running, and it didn't phase it.Things to note: I wanted to modify this to use as a gentle vacuum pump. I was pleasantly surprised to find the plastic intake cover had a tight sealing rubber o-ring. No modification necessary, this is a mild vacuum pump out of the box.I plugged it in and it ran immediately, no power switch. Reliable and cheap.After placing a finger over the end, I determined it was a very low pressure pump, as the manufacturer stated.So I rigged up a suction tube to lift water out of a container on the floor. Placed the pump on the counter, and flipped it on. It immediately lifted the water and sucked in into the pump, and it shut down abruptly. Oh no! I ruined it...Nope. Poured water out of the pump itself, plugged it in another outlet and confirmed it worked just fine. It was the GFCI breaker that tripped. (They work too!).I then unplugged it and tipped it. More water came out! I had failed to dry it out completely from before! This pump; you almost cant destroy it!Now to test the vacuum by lifting water... Placed on a high shelf with a 10ft clear suction tube to the floor, over 6' of elevation. The pump pulled the water right to 46.5", subtract 2.75" remaining in the container for 43.5" wc (water column) of vacuum.This equates to 1.57psi, or 226lb/ft.~ 10.8kPa of vacuum. (1,1m wc).This is a very good little pump. This was the basic lowly 15w. Higher power may produce better performance. I'm happy with this.4.5 stars instead of 5, because they state it requires a 1/4" ID tube. This is 6.35mm, to the actual 8.0mm outlet diameter. You need a tube between 7-8mm to fit easily.Also, the suction input is 8.9mm; 10.25mm over the barbs. So you need a 9-10mm tube here.Blow: 9/32" to 5/16"Vac: 5/16" to 3/8"Get the 5/16" heat the tube to fit.

Its excellent, price is right, but it is loudIts great for outdoor use.

I needed an extra pump in case my main pump died. Saw this one, ordered it and got in a few days. Set it up and it was quiet enough and I really like that you can use the little manifold that comes with it to shut off or regulate how many lines you use which I simply love.

This pump works great. I'm running five stones on it right now.

I run this for 24hrs at a time. I set it up outside my garage and the summer heat has not been an issue for it at all. The noise level isn't that loud.