O2 Commercial Pump, 951 gph 3.48 psi 41watts 120volts by Elemental Solutions

After one month, the pump has been great. The test will will be after 1,2,3 years of continuous duty in a sheltered outdoor location. I am experimenting with it as a more economical aerator for our small septic tank and it seems to be working. I may add a second one to increase the churning efficiency of the air flow. It operates with far less noise than I expected from the reviews I read. I also takes up very little space, maybe 8' X 8". I don't think you would notice it if it were bubbling an aquarium in the next room.

So far so good. I've only used it a few times so far for making compost tea. But those few times I've had the pump on for a continuous 48 hours. Im using it with a five gallon paint bucket and it's more than enough to get the brew bubbling. I imagine that there could be many horticultural applications with this here pump. I haven't tried any other similar pumps, but was pleased with the low level of noise from the pump. It does help even further with noise to place the pump on a towel.

It Pushes some Serious Air! Slightly LOUD, but not more so than an older model that you purchase at a Pet Store that's been used, my son has this on a 220g tank pushing 5 lines with an additional 2 breeder tanks pushing lines as well and it just works to perfection. Will probably purchase more in the near future for additional tanks.

the manifold should only be a maximum of 3, only loses one star for noise but this is in my basement I don't hear it outside the room

If you're still using regular old aquarium pumps, scratch u up enough for one of these bad boys and you'll never go back. I wasted I'm sure $150+ on cheap pumps from petsmart, Walmart, etc. before ordering this. I replaced a 5-15 gal, a 10-20, a 15-30 gal, 4X 20-60 gal pumps, plus a 50-200 gal pump w just this one and it was still noticeably more bubbly-frothy in the tank, my guess 25% -33% more bubbles, some ppl say these things are kinda loud but I put a hook in a ceiling beam, tied about 6-8' of 550 guts (cord) on there and hung it from the ceiling pointing down, barely hear it now. Also, a pc of plastic tubing from the pump intake back down to the floor, preferably but not necessarily close to an AC vent will not only pull cooler air thru the pump, increasing its efficiency and reducing amount of heat being added to your tank/res

Not too noisy. Seems to flow a lot of air.Doesn't have the pressure to push air more than a few feet underwater.So not good for a deep pond but fine for fish tanks and hydroponics.

makes lots of bubbles I know it is mainly for 6 lines but I have 8 lines running and I still have lots of bubbles.

4 stars because it blows lots of air but it is louder than I expected.