Extremely quiet aeration system. Operates on 2 "D" cell batteries for up to 52 hours; 12 VDC adapter (included); and has a 110V adapter Port (not included). powerful 3 VDC motor pumps up to 1.39 liters of air per minute. Aerates 5-10 gallons; water resistant case with neoprene seals and a booted waterproof switch; 30" of soft silicone airline tubing with weighted glass beaded air Stone. Adjustable stainless steel mounting clip and fasteners; for fresh and saltwater; space Saver clam shell package; 5-1/2" x 7-1/2" x 2".

From the Manufacturer

The 2 Way Hush Bubbles aeration system is exceptionally quiet and powerful. It operates on two D-cell batteries up to 55 hours, comes with a 12-volt to 3-volt cigarette adaptor and has a 110-volt adapter port. The pump is protected by a weatherproof case, comes with weighted glass bead air stone and has a large adjustable stainless steel mounting clip. It fully aerates up to 8 gallons.

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