Marine Metal Bubbles 1.5-3V Portable Air Pumps -Aerates up to 8 gallons. Impact water resistant case with neoprene seals and rubber booted switch. Beryllium copper battery contacts for longer batter life. Weighted air stone with 24" of silicone air line tubing enclosed in pump. Large adjustable stainless steel clip for attaching to any bucket. Dry Box design is designed to keep pump dry while in use. Each pump individually tank tested to assure highest quality. Pumps 1.4 STL/minuteDesigned for fresh and saltwater useSpace saver clam shell packageMPN: B-1