METAL AERATOR

Aerates up to 7-1/2 gallons. Pumps 7/8 liter. of air/minute. Booted waterproof switch. Precision motor runs 85 hours on 2 alkaline. 'D' cell batteries. Weighted glass bead airstones. with 30" of air line tubing. Adjustable. stainless steel clip and fasteners. Individually. tank tested. Weighted airstone. Beryllium. copper battery contacts. Diaphragm pump. Fresh or salt water.