Marine Metal - Double Bubbles

The big job air pump that is water tight. Water-tight dual air pumps provide twice the oxygen of regular pumps. Runs up to 37 hours on 2 alkaline 'D' cell batteries. Aerates 1 or 2 wells up to 12 gallons. Two individual 30" air lines, single line "T" adapter, and two weighted glass bead airstones.