Trane HUS3805 Housing 320788-703 Enhanced Durability: Classified as a

Enhanced Durability: Classified as a Class FB Coil

as direct spark ignition systems are highly sensitive to proper grounding for flame rectification

clogged 1/4" barb ports

300 BTU heating capacity

Replacing a fouled or tripped limit switch with this factory-authorized component restores the original manufacturer's specifications for thermal protection

Trane HUS3805 Housing 320788-703 Enhanced Durability: Classified as aThe Trane HUS3805 Housing is a specialized right side blower housing engineered specifically for residential air handlers and packaged units, including the 2WCC, 4WCC, and 4TCC series. Manufactured from high grade, molded glass fiber polyester, this natural colored enclosure provides a rigid, non conductive, and corrosion resistant barrier for the centrifugal fan assembly. As an OEM Trane part, it ensures precise physical tolerances (approximately 7.