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Hydrofarm Backdraft Damper, 6"
Made of galvanized steel, these dampers prevent air leakage into your fan setup. They are easy to install, fit directly onto the ducting, and prevent a back draft of air when the fans are switched off.
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Price: $19.95
Hydrofarm Backdraft Damper, 4"
Made of galvanized steel, these dampers prevent air leakage into your fan setup. They are easy to install, fit directly onto the ducting, and prevent a back draft of air when the fans are switched off.
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Price: $17.95
Hydrofarm Backdraft Damper, 10"
Made of galvanized steel, these dampers prevent air leakage into your fan setup. They are easy to install, fit directly onto the ducting, and prevent a back draft of air when the fans are switched off.
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Price: $39.95
Hydrofarm Backdraft Damper, 12"
Made of galvanized steel, these dampers prevent air leakage into your fan setup. They are easy to install, fit directly onto the ducting, and prevent a back draft of air when the fans are switched off.
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Price: $49.95
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