Need help with My Air Ducts!!!

ok im going to be geting this stuff in a couple of days and i want to know if its ok to use?

[align=center]Inductor 4 In. In-line Duct Fan:[/align]

Description:This versatile 4 In. In-line fan can boost airflow by up to 80 cfm. For convenient installation the housing is crimped on both ends. The fan runs on 110 volt household current and efficiently uses 30 watts of electricity.

â?¢ For 4 In. flexible and rigid ducts.
â?¢ 4 In. fan has free air CFM of 40 and max boosted CFM of 80
â?¢ These quality fans install directly into home or office duct work.
â?¢ UL and ETL Listed

[align=center]Master Flow 4 In. Metalized R6 Insulated Flexible Duct[/align]:

Description:The Master Flow F6IFD Series is UL-approved to create safe, reliable branch lines in HVAC systems. Master Flow insulated duct consists of 4 parts: core, vapor barrier, helix and insulation. Combined, these features result in strong, long-lasting and efficient flexible duct. Indoor use only.

â?¢ Core: A full continuous inner core shields fiberglass from erosion.
â?¢ Vapor Barrier: Metalized single strand fiberglass yarns for added strength and tear resistance.
â?¢ Helix: Zinc-coated, high carbon steel wire helix for added strength.
â?¢ Insulation: Thick, continuous blanket of 2 In. glass fiber insulation.
â?¢ Always seal seams with code approved mastic or sealant (or duct tape).

PLEASE LET ME KNOW IF THIS IS GOOD FAN FOR MY GROW CAB.:thumbsup: