Pre-wired Convenience: Integrated 9" wire leads facilitate quick connections for emergency furnace repair calls

Attempting to adjust the set point on a fixed-pressure switch can compromise system safety

reducing vibration and operational noise

Full Internal Overhaul: The 304-030 repair kit provides all critical wear items

the 100165931 prevents unburned gas accumulation and nuisance shutdowns

Zonefirst AOBD-18X8 Damper R-410A Pre-wired Convenience: Integrated 9" wireThe Zonefirst AOBD 18X8 is a professional grade automatic opposed blade damper designed for rigorous residential and commercial HVAC zone control applications. Featuring an 18 inch width by 8 inch height side mount configuration, this unit is engineered with an extruded anodized aluminum frame and blades to resist corrosion while maintaining a slim profile. The integrated 24Vac power open power closed actuator ensures positive airflow shutoff and