Small enough to carry anywhere. Powerful blast can be heard up to a mile away. Up to 12 blasts. 4-1/2" tall. Stainless steel non-corrosive diaphragm. U.S.C.G. recommended for boats up to 12 meters. 100% ozone safe. Available as a complete horn containing 1 cartridge or refill set containing 2 cartridges.
