400mm Dampers

We list 4 products in 400mm, including intumescent fire blocks, multi-leaf volume control dampers, single blade dampers and non-return dampers. Matching the damper to the duct size it will be fitted in keeps installation simple.

UK delivery is free on orders over £400 ex VAT, and stocked items ordered before 3pm are dispatched for next-working-day delivery.

Alpha Air Ventilation Supplies is a Leicester-based supplier of commercial and industrial ventilation equipment, serving trade and business customers across the UK.

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