Elite Air Pump satisfies the full range of aquarium air requirements. Their unique design, coupled with a durable diaphragm, provides trouble-free operation. High performance output and quiet operation. Superior design effortlessly provides maximum air output. Easy maintenance. Durable.An ELITE air pump is a reliable source of delivering air for air operated items such as air stones, air curtains, air-actuated ornaments or for adding movement thus oxygen to any aquarium. Elite 799 Air Pump - Air Output Minimum - 900 cc/minute - Pressure - 1.0 P.S.I. - Electrical - 220-240 Volts (2 Watts) - CSA Approved - Recommended Aquarium 23 Litre /5 gallons Elite 800 Air Pump - Air Output Minimum - 1100 cc/minute - Pressure - 1.4 P.S.I. - Electrical - 220-240 Volts (2 Watts) - Weight - 210g - Dimension - 98x65x45mm - Air Connection - 5mm - Decibel Level - High 30 dB at 6' distance - CSA Approved - Recommended Aquarium 45 Litre/10 gallons Elite 801 Air Pump - Air Output Minimum - 1300 cc/minute - Pressure - 1.4 P.S.I. - Electrical - 220-240 Volts (3 Watts) - Weight - 280g - Dimension - 110x68x50mm - Air Connection - 5mm - Decibel Level - High 35 dB at 6' distance - CSA Approved - Recommended Aquarium 56 Litre /15gallons Elite 802 Air Pump - Air Output Minimum - 1500 cc/minute - Pressure - 1.7 P.S.I. - Electrical - 220-240 Volts (3.5 Watts) - Weight - 280g - Dimension - 120x85x65mm - Air Connection - 5mm - Decibel Level - High 45 dB at 6' distance - CSA Approved - Recommended Aquarium 75 Litre /16 gallons Elite 799, 800, 801 Single Outlet only Elite 802 Double Outlet only