Review on 🌬️ EcoPlus HGC728459 Eco Air7 Commercial Air Pump 7 - 200 Watt Single Outlet: Perfect for Aquariums, Fish Tanks, Fountains, Ponds & Hydroponics - 3566 GPH, Silver by Morgan Davis

I have received trade item 3566 GPH. It works with 32 small sponge filters with a large air supply (see video). You could probably run 50 small sponge filters with one pump. I attached it to the basement rafters just below the tanks with a piece of plywood and ran an air hose through the floor. You don't have to watch it and it's reassuring. It's loud, but all pumps of this size are loud. I don't have a dB meter, but it sounds like AC window unit hissing. Other reviews said this unit gets very hot but they should have smaller pumps. I have a very small fan (about 6 inches) and it stays very cool as a small child can leave it on for hours. Can't comment on durability as I've only had this device plugged in for a week, but it seems to be very durable. If you suddenly need to convert, this is described in the user manual, and it is very simple. The only improvement I would like to make to this product would be an adjustable air vent so I can reduce the flow (and thus quieter) (it always runs at full power) and make it quieter. Given the performance, I think the noise is reasonable. For the price you can't beat it.