Draft Blocker Damper, Ventilation Check Valve, Draught Back Shutter

Features:


Simply DIY: Offers anti-overpressure flap, and fit in between all-plastic air duct, flexible duct system.
For use in applications; Home ventilation kitchens, toilets bathrooms & hydroponics.
If you need to use STOP odors, or if you have 2 or more suction fans, flows back in the same air ducts connected.
Perfect for your bathroom or kitchen exhaust fan, hydroponics, inline extract fans, or extractor hood. 
This backflow damper can be used as part of a long air duct for a variety of purposes including whole house ventilation, passive stack vent, positive pressure, dryer, air conditioning venting; HVAC and heat recovery systems.

Specifications:


Material: ABS
Shape: Round
Type: Backdraft Damper
Function: Vent Back Draught Shutter
Function: Air Conditioner Parts
Type: vent fan

WARRANTY

We'll refund your money if the item hasn't been delivered within 40 days after purchase. You have 2 weeks to request a refund — until day 60.
Product doesn't match the description? Contact us within 30 days after you receive it!
In case of cancellation, money will be refunded to your account within 3 days.