The Pondtec PondAir set 450 is an excellent value air pump from Pondtec, a brand known for quality. This air pump is designed to introduce vital oxygen to pond systems, which helps to increase the health and lifespan of your fish. The PondAir Set 450 features a maximum air displacement of 450 Litres per hour and has a twin outlet. It comes complete with airline tubing and airstones. Specifications include: Air Displacement: 450 LPH, Power: 6 Watts, Regulator: No, Outlets: 2, Airhose: 10m, Stones: 2, Guarantee: 2 Year.