Review on AQUANEAT Aquarium Air Pump 300GPH: Powerful Hydroponic Aerator Pump for Up to 200 Gallon Fish Tank – Oxygen Bubbler Included! by Destiny Gvozdeva

Good price so I gave it a try. The first one I got had a manufacturing defect in the on/off/control knob - it only worked at all if I twisted it hard and glued it in place, and even after that it went off after a while. I ordered a replacement which arrived within 2 days and the handle works perfectly, flow is stable and I no longer have to worry about it shutting down (although I seriously doubt the 300gph claim, it's not straight a hurricane passing there). complain about the noise. I can hear it, but it's a normal, low hum, about what I'd expect from a budget model. To be honest I forgot it was on.