The Marine Metal Floating Airhead Aerator runs quietly and can be used in both fresh and saltwater. The Floating Airhead is a 12V aerator that mixes air and water to produce a gentle current of micro bubbles to keep your livewell fresh and your fish alive. The Floating Airhead adjusts to any livewell depth and the foam filter removes any floating debris. Complete with solid copper battery clips. High performance system mixes air and water to produce large gentle current of micro bubbles Aerates up to 25 gallons Fish stay lively - system does not injure fragile bait Perfect for catch and release tournaments and crowded live wells Naturally adjusts to any live well depth Does not get clogged with bottom debris Designed for fresh and saltwater