Price range: £4.42 through £13.55 In stock
These Greenwood trickle ventilators are designed to provide continuous effective ventilation, helping reduce mould and condensation.
Standard through frame slot vent for passive ventilation, available in 3 sizes offering up to 4200mm² equivalent area.
Can be retrofitted and are sold in singles.
Suitable for timber, UPVC and aluminium.
| Manufacturer | Greenwood Vents |
|---|---|
| Colour | Brown, White |
| Height | 22mm |
| Slot Height | 16mm |
| Length | 305mm, 400mm, 550mm |
| Slot Length | 175mm/10mm Bridge/175mm, 250mm/10mm Bridge/250mm, 265mm |
| Air Permeability @ 50 Pa (m²/hr) | 1, 10, 4 |
| Air Permeability @ 50 Pa (l/s) | 0.27, 1.11, 2.7 |
| Watertightness Pressure @ no leakage (Pa) | 500Pa, 600Pa |
| Watertightness Classification | E4 |
| Airborne Sound Insulation (dB) | 32dB, 33dB, 35dB |
| British Standard | Yes |
| Fixing | Screw |
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