The Watson & Chalin Heavy Duty Axle Up LACM Air Relay Valve is a reliable and durable solution designed to enhance the performance and safety of heavy duty vehicles. Engineered with precision and quality craftsmanship, this air relay valve is specifically designed for heavy duty axles and suspension systems, ensuring optimal performance and efficiency in demanding operating conditions. Featuring advanced technology, the relay valve offers superior control and precision in air distribution. FleetPride is your First Click in Heavy Duty®.