Widely used to provide oxygen in aquariums, fish farms and hydroponic systems. Cylinders and pistons are made of premium materials, making the pump strong and durable. Convenient to operate without oil or much noise. This unit operates on 80.0 watts of electricity per hour. With 88 liters per minute total output at 4.2 PSI per outlet. Comes with 8 outlet metal manifold that uses standard airline tubing. Will run up to 95 outlets.