Marine Metal Products Bubble Box

Overlap case construction protects motor and batteries. Runs up to 33 hours on 2 "D" batteries * Aerates up to 7-1/2 gallons · Pumps 7/8 liter of air/minute · Runs quietly on 1 or 2 'D' cell batteries · Adjustable stainless steel clip and fasteners · Individually tank tested · Weighted airstone · Beryllium copper battery contacts · Diaphragm pump · Fresh or salt water