Active Aqua AAPA110L 112-Watt 1750 GPH 110-LPM Commercial Pond Hydroponics Aquarium Air Pump with 12 Outlets, 2 Pack

I have been using this product for about three days in one house and for the last couple days in my other grow room both work great as far as loudness they are a little bit louder then your regular aquarium pump but not bad at all my plants love the more oxygen that is created by the bigger pump. They do give off heat but nothing that’s not manageable