Air Pump for an Aquarium or for the smaller pond or Quarantine Tank up to 1000 gls and 30" deep Hailea ACO 2206 - 4 x 2.5 ltrs/min. Air pump Output: The ACO-2206 has 4 outlets and produces 10 litres of air per minute This small air pump is not waterproof and would need to be kept dry.