Aquatop BREZA Battery Powered Air Pump w/ AC Power Failure Sensor

Outlets: 1; Output: 2.5L/min Power: 0.3W Includes 23" of airline and an air stone Battery Size: D x 2 (Not Included) Operates with battery power only The Aquatop AC/DC-One Battery Operated Air Pump provides auxiliary air when a main air source fails. It's a reliable back-up air source during a household AC power failure and can also be used as a portable aerator for fish in transit. Comes with an air stone, 23" tubing and an AC power failure sensor. Uses two D cell batteries (Not Included).