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SAILFLO 4 Inch Wall-Mounted Exhaust Fan, 12W Ventilation Extractor with Anti-backflow Check Valve Chain Switch for Window Duct Glass Grow Tent Bathroom Vents - 6 ×6 Grid Panel - Small Size
Upgraded fan When installed to glass or walls, it can be used to prevent dust, leaves, pollen, backflow with the wind-proof ABS sheet. The lattice filter can be removed and easy to clean. It is also easy for drawstring switches. EP / Energy Saving This ventilation fan adopts environmentally friendly ABS material which is light and not easily deformed, excellent heat resistance and durability. The consumption efficiency is only 12 watts, saving power. For 110V, the air volume is 130m³ / H in a specific environment,

Price is $28.00
Price: $27.99