This Active Air flange fits snug as a bug on any 4 inch 265 CFM Active Air fan.
– Slim design for maximum connectivity, perfect for outflow.
– Integrates easily into existing ventilation systems.
Out of stock
The Hydrofarm 4 inch outflow flange is perfect for connecting your Active Air blower to a duct in the ceiling. This attachment, when fitted to the exhaust opening of your blower, allows for an easy connection between the blower and the ceiling ductwork. This flange has an opening diameter of 4 inches and can be attached to the outflow side of the 265 CFM Active Air blowers.
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