Manrose
Manrose Back Draught Shutter 4"/100mm
Manrose Back Draught Shutter 4"/100mm
SKU:473107
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- Free shipping for orders over £75. See shipping policy for restrictions
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Shipping
Shipping
Free delivery for orders over £75 within UK mainland. This does not apply to large products (such as those above 1m of length), heavy products (including aggregates, compost and wood logs) and fragile products (such as ceramics, shower enclosures etc.). See shipping policy for restrictions.
Free local delivery above £50 and £5 charge for delivery under £50 within a 3 mile radius and £7 up to 6 mile radius.
Standard Shipping - United Kingdom (UK Mainland Excluding Northern Ireland)
- Lighter items (under 1kg) - £4 and free for orders over £75
- Smaller items (1 - 10kg) - £7 and free for orders over £75
- Larger items (10kg - 30kg) - £15 and free for orders over £350
- Bulky items (30kg and above) - £35 with minimum order value of £100
Express Shipping - United Kingdom (UK Mainland Excluding Northern Ireland)
- Lighter items (under 1kg) - £7 and free for orders over £75
- Smaller items (1 - 10kg) - £10 and free for orders over £75
- Larger items (10kg - 30kg) - £20 and free for orders over £350
Wallpaper Samples
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Standard Shipping (Northern Ireland and Scottish Islands & Highlands) 2 to 7 business days
- Lighter items (under 1kg) - £7
- Smaller items (1 - 10kg) - £15
- Larger items (10kg - 30kg) - £25
- Bulky items (30kg and above) - £35 with minimum order value of £100
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Returns
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The Manrose 100mm (4") In-Line Backdraught Shutter is an essential addition to any ventilation system that helps maintain indoor comfort and energy efficiency. Installed within a ducting run, this device prevents unwanted cold air, odours, and debris from re-entering the building when your ventilation fan is not in operation.
Crafted from lightweight and durable PVC, this in-line shutter is designed for quick and easy integration with existing 100mm round ducting. Whether for domestic kitchens, bathrooms, utility rooms, or commercial installations, it ensures a more controlled and hygienic air environment.
Key Features
-
Prevents Air Backflow
Automatically closes when airflow stops, blocking drafts and external air from re-entering the property. -
Energy-Efficient
Helps maintain indoor temperatures and reduces heat loss, supporting more efficient heating and cooling. -
Low-Resistance Design
Opens with minimal airflow resistance, ensuring that fan performance is not compromised. -
Lightweight & Durable
Constructed from white PVC, offering reliable operation with resistance to corrosion and wear. -
Universal Fit
Compatible with most 100mm (4") round ducting systems, including flexible and rigid ductwork.
Technical Specifications
| Attribute | Specification |
|---|---|
| Product Type | In-Line Backdraught Shutter |
| Duct Compatibility | 100mm (4") Round Ducting |
| Material | PVC |
| Operating Mechanism | Gravity-operated flaps |
| Installation | Inline – fits between duct runs |
| Weight (Boxed) | 60g |
Applications
- Bathroom extract fans
- Kitchen ventilation systems
- Utility rooms
- Inline fan ducting systems
- HVAC systems in both residential and commercial settings
Installation Notes
- Install the shutter with the arrow pointing in the direction of airflow.
- Ensure the unit is level to allow gravity flaps to close properly.
- Suitable for horizontal or vertical duct runs.
- Can be used in conjunction with extractor fans and inline fans.
Frequently Asked Questions (FAQ)
Q: Does this shutter work with both rigid and flexible ducting?
A: Yes, it can be installed with either type, as long as the ducting has a 100mm internal diameter.
Q: Will this affect fan performance?
A: No, the flaps are designed to open with minimal airflow resistance, so your fan will operate efficiently.
Q: Is this suitable for external wall mounting?
A: It is intended for use within the ducting run. For external terminals, a grille with integral shutters is recommended.
Warranty Information
All Manrose products, including this in-line backdraught shutter, are covered by a 1-year manufacturer’s warranty against material or manufacturing defects under normal usage and installation conditions.
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