though it should be inspected periodically for thermal stress

Durable Construction: Built with high-grade materials to withstand the thermal cycling typical of modern HVAC combustion sequences

Durable Brass Construction: High-grade machining resists corrosion and maintains orifice integrity under constant thermal cycling

Critical for sequential control setups where multiple dampers operate from a single signal

Nordyne 376431 Cover though it should be inspectedThe Nordyne 376431 Cover is a precision engineered OEM HVAC replacement part designed for use in specialized control and relay box assemblies within furnace relay box configurations. Weighing approximately 0. 42 lbs, this heavy duty protective housing is critical for maintaining the structural integrity of internal electrical components, specifically within AC and heat pump relay kits. As a genuine Nortek Global HVAC component, it ensures exact