4 Inch Dampers

Looking for 4 inch dampers? This page collects every 4 inch product in our catalogue — circular fire dampers, multi-leaf volume control dampers, single blade dampers and blast gate dampers — so a complete, matching setup can be ordered in one go. Matching the damper to the duct size it will be fitted in keeps installation simple.Spend over £400 ex VAT and UK delivery is free. Stocked items ordered before 3pm are dispatched for next-working-day delivery.