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315mm dia Large Format Circular Diffuser - Silver/Grey

315mm dia Large Format Circular Diffuser - Silver/Grey

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150 dia Plastic Supply/Exhaust Valves

2mm Wire Rope 150m Reel

2mm Wire Rope 150m Reel

Wires with Carabina 2mm x 2m - Pack of 10

Wires with Carabina 2mm x 2m - Pack of 10

Circular Roof Cravat

Circular Roof Cravat

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Ductwrap - Isover ClimCover Alu2 25mm 18m Roll

Non-return (backdraft) Dampers

Ventilation Ducting  | Dampers & Access Doors | Non-return Dampers |  Non-return (backdraft) Dampers



Lightweight aluminium blades on a light steel spring maintain the damper in the closed position when no air is flowing, preventing wind/drafts from flowing back through the duct.

100 dia Non-return (Backdraft) Damper
BDS-100




£3.45 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Male Couplers (Ref: NP)
2. Hose Clips (Ref: HC)
3. Flanged Spigots (Ref: IL)
100 dia Non-return (Backdraft) Damper
125 dia Non-return (Backdraft) Damper
BDS-125




£4.11 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. 125mm - 100mm Reducer with Seals (Ref: RPCL125-100)
2. 125 dia 45° Y Pieces with Seals (Ref: YSVL125)
125 dia Non-return (Backdraft) Damper
150 dia Non-return (Backdraft) Damper
BDS-150




£4.32 (Excluding VAT at 20%)




Quantity:


150 dia Non-return (Backdraft) Damper
160 dia Non-return (Backdraft) Damper
BDS-160




£5.04 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Hose clips - Bundle of 10 (Ref: HC10)
2. Flanged Spigots (Ref: IL)
3. Male Couplers (Ref: NP)
160 dia Non-return (Backdraft) Damper
200 dia Non-return (Backdraft) Damper
BDS-200




£5.67 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Foil Plain Flexible Ducting (Ref: AF)
2. M10 Back Plate Threaded Rod Hanger (Ref: BPH-10)
3. 200mm Dia Inline Duct Fan (Ref: DV200)
200 dia Non-return (Backdraft) Damper
250 dia Non-return (Backdraft) Damper
BDS-250




£9.75 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. M6 Back Plate Threaded Rod Hanger (Ref: BPH-6)
2. 250mm Dia Plate Mounted Axial Fan - Single Phase (Ref: HCBB/4-250/H)
3. No. 6 Multi Masterflash EPDM (Retro-fit) (Ref: MMFH6)
250 dia Non-return (Backdraft) Damper
315 dia Non-return (Backdraft) Damper
BDS-315




£14.56 (Excluding VAT at 20%)




Quantity:


315 dia Non-return (Backdraft) Damper
355 dia Non-return (Backdraft) Damper
BDS-355




£19.74 (Excluding VAT at 20%)




Quantity:


355 dia Non-return (Backdraft) Damper
400 dia Non-return (Backdraft) Damper
BDS-400




£26.32 (Excluding VAT at 20%)




Quantity:


400 dia Non-return (Backdraft) Damper
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