GAT Group provides the industries most advanced ultrasonic anti-fouling system available to retail consumers. Fully automatic protection for your hull and stern gear, the Hull Shield system ultrasonic anti-fouling system is offered in multiple configurations to meet any requirement. Our anti-fouling systems are engineered to be used as stand-alone units or can be combined for enhanced protection on larger vessels. Our single units can complement boats up to 50′. Systems can be combined to increase coverage and protection for vessels of any length. Hull Shield anti-fouling systems are engineered with the same technology used by the US Coast Guard, Navy, and commercial shipping vessels.