Aluminium Ducting 12" X 6M - 8 Ply 10 Inch Ventilation Safe For Use : This

Safe For Use : This 4g Small Boveda 62 %Humidipak is FDA approved

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Aluminium Ducting 12" X 6M - 8 Ply 10 Inch Ventilation Safe For Use : ThisNon Insulated Aluminium Ducting 12" X 6M 8 Ply Hydroponic Ventilation Ducting This aluminium ducting has a twelve inch diameter and is sold in six meter lengths. It has a max temperature rating of 200 Celsius and has eight layers for extra strength. Hint: If you're running one fan in a small tent you can just cut the roll in half saves you buying two :)