4" Inch Back Draft Blocker, Backdraft Damper Dryer Vent Hose, Inline Extractor Fan Vent Back Draught Shutter
Perfectly suited for ducting your Bathroom or Kitchen extractor fan, Hydroponics, In-Line Extract Fans, or Cooker Hood, Prevent cold air from entering your home through the dryer vent with our inline dryer vent draft blocker
Comes with balanced damper fully assembled, stops unpleasant odours, noises, or draughts flowing back through your duct
This backdraught shutter can be used as a part of a long duct run for a variety of purposes including whole house ventilation, passive stack vent, air conditioning, positive pressure, Tumble Dryer Venting, HVAC, and Heat Recovery Systems
White Plastic Extractor Fan Backdraught Shutter - Male Spigot - Diameter: 3.93" Inches.
Compatible with 4" Inch diameter ducts or vents. Easy to DIY!
3.93 x 3.93 x 2.44 inches
- FREE standard shipping within the United States(3-6 Days)on all orders!
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- Shipping services: UPS, FedEx, USPS.
- Only ship to the lower 48 states, no APO/FPO addresses or PO Boxes allowed.
- Local pickups and combined shipping options are not provided at this time.
- You can return a product for up to 30 days from the date you purchased it.
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If you have any problem with your order, please contact us and we will do our best to make you satisfied.
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We usually respond within 24 hours on weekdays.
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