4" 100mm - Back Draft Shutter Duct Connector

Backdraft shutter duct connector

Arrived on time ,great value, thank for a great service, I will be ordering again.

Back Draft Shutter

Bought this to replace one that had two flaps with a spring to keep it closed but it clattered with gusts, this one doesn't. Great value

Brilliant item

Brilliant product, speedy service as well as an excellent price