Deep Blue Professional hurricane category 2 deluxe battery operated air pump is water resistant design, includes rubber seal for both battery compartment and power switch. Silent operation, reliable and powerful performance. This pump is perfect as a back-up unit during power loss, so when the power dies, your livestock won"t die. Can also be used to oxygenate water while transporting fish over long distances. Runs on 2 "D" cell batteries. Includes air pump, airline tubing and air stone.