Pond One O2 Plus 4000 Air Pump Oxygen equals Life. 02 Plus Air pumps from Pond One are specifically designed for outdoor use and are highly resistant to extreme weather conditions. Fitted with a 10m cable, installation is made simple in comparison to other models around. Features: High volume, high pressure air pump. Enables connection of up to 10 air devices with the use of gang valve. High grade, long life silicone parts. Twin air filters supply clean air by removing dust and pollution. Aids in circulation of dead water spots. 10m outdoor rated cable. Voltage: AC 220-240V / 50 Hz. What's Included: 1x O2 Plus 4000 Air pump 10 outlet gang valve - [Uses Standard 4mm Airline Tube (Not included)] 1x Soft rubber elbow connector 2x Spring clamps 1x Instruction Manual