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Backdraught shutter

£4.71£15.33 Ex VAT
Backdraught shutter Product Code: BDS - Low cost solution for preventing backflow through a duct - Galvanised casing and blades - Spring assisted closing - Metal hinge pin

Single blade balancing damper

£7.19£13.78 Ex VAT
Single blade balancing damper Product Code: SBDC - Galvanised steel casing and blade - Lockable plastic manual control