KnightsBridge 4 Gravity Shutter - Black  £2.51

100MM/4 Gravity Shutter - Black
EX007B

Ideal fuss-free solution when you need to install a hole in an external or internal wall. Suitable for use with 4”/100mm fan via round ducting.

• For use with 4”/100mm fans
• Compatible with 4”/100mm round rigid or flexible ducting
• Prevents backdraught air and rain penetration
• Prevents objects of vermin entering when the ventilation is not in operation
• Dimensions (H x W x D): 152 x 152 x 60.5mm
• Manufactured from polycarbonate
• 1 Year warranty