Its durable construction is built to withstand the rigors of mechanical room environments while delivering consistent 3-phase power performance

Ensure your HVAC controller is sending a compatible 24V signal

This comprehensive service kit is engineered to restore factory-spec relief valve functionality

and 90000 series range hoods

or moisture leading to pitting and corrosion

Resideo MARD-8 Damper 319852-301 Its durable construction is builtThe Resideo MARD 8 is a heavy duty 8 inch modulating automatic round damper designed for high performance bypass and zone control in commercial and residential HVAC systems. Built with a 22 gauge galvanized steel shell, this single blade damper features a male crimped and female uncrimped end for seamless integration with rigid or flexible ductwork. A primary application for this 3 wire motorized damper is managing bypass air in systems larger than