Price range: £11.39 through £12.28 In stock
These Greenwood window ventilators are designed to provide continuous effective ventilation, helping reduce mould and condensation.
Standard Through Frame Slotvent for passive ventilation, available in 2 sizes offering up to 3200mm2 equivalent area.
Can be retrofitted and features pull-cord operation.
Suitable for timber, UPVC and aluminium.
| Manufacturer | Greenwood Vents |
|---|---|
| Colour | White |
| Height | 22mm |
| Slot Height | 16mm |
| Length | 305mm, 400mm |
| Slot Length | 175mm/10mm Bridge/175mm, 265mm |
| Air Permeability @ 50 Pa (m²/hr) | 4 |
| Air Permeability @ 50 Pa (l/s) | 1.11 |
| Watertightness Pressure @ no leakage (Pa) | 500Pa |
| Watertightness Classification | E4 |
| Airborne Sound Insulation (dB) | 33dB |
| British Standard | Yes |
| Fixing | Screw |
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