Pay in 4 interest-free payments of $31.91 Learn more
Ships within 48 hours · Estimated delivery Sep 9 - Sep 14
Resilient Construction: Built to withstand the high-vibration environment of a mechanical room or rooftop unit
Maintenance-Free: Factory calibrated with a platinum PTC sensing element that maintains accuracy over time without manual adjustments
and function for a drop-in replacement
Always verify the required orifice quantity and drill size in your heater's manual
ZoneFirst AOBD-20X10 Damper 320788-703 Resilient Construction: Built to withstandThe ZoneFirst AOBD 20X10 Damper is a professional grade automatic opposed blade damper engineered for precision bypass and zone control in high demand residential and commercial ductwork. This 20" wide by 10" high unit features an anodized extruded aluminum frame and blades, ensuring a low profile footprint that fits into 3 inch slots for streamlined side mount installation. Each blade is connected via a stainless steel draw bar and nickel plated
