Review on VIVOSUN 285 GPH Air Pump: Efficient 9.5W 4 Outlet for Aquarium and Hydroponic Systems by April Irvin

Decent value. Good performance and 4 sockets for compact space utilization. The block will get HOT, so be careful where you place it. Hot enough that the rubber feet on it will melt a bit and mark the shelf it's on. For this reason I decided to put it on a stone stand. The hoses also get hot and the pressure can knock the hose out of the outlet if it is not properly attached. I use small zip ties to keep the tubing from coming loose. Otherwise it does what it is supposed to do for the money.