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Engineered with a durable cast iron body and a 2-inch NPT connection
this is an automatic reset switch
this unit operates at 208/230V and delivers 1/16 HP at a consistent 3450 RPM
Standard head mechanisms generally require a separate 10-bolt flange gasket (Part No
ZoneFirst AOBD-20X10 Damper 328140-751 Engineered with a durable castThe 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
