Resideo ZD8X18TZ Damper R-407A High Durability: All injection-molded design

High Durability: All injection-molded design prevents electrolysis and sunlight deterioration

Reliable Mechanical Operation: Spring-wound design functions independently of power outages for consistent performance

this unit features a 1/2" diameter shaft and a stud mount configuration for secure installation in tight compartments

High Precision Sensing: Features 10k ohm NTC thermistor specifications for accurate resistance-to-temperature conversion

Whether you are performing an emergency gas furnace replacement or a precision tune-up

Resideo ZD8X18TZ Damper R-407A High Durability: All injection-molded designThe Resideo ZD8X18TZ is a heavy duty 8 inch x 18 inch rectangular zone damper engineered for precise airflow management in forced air systems. Constructed with a solid extruded aluminum frame and parallel blades, this unit minimizes pressure drop while ensuring a low leakage seal (less than 1% at 0. 5 in. WC) when closed. It features a 24Vac power closed, spring return open configuration, making it a reliable fail safe solution that defaults to the