Ø 100mm / 4'' Cowled Duct Cover with Gravity Flap - Ventilation Grille with Rain and Wind Protection - External Air Vent Covers - ABS Plastic Brown

• Ø 100mm / 4'' Round Spigot Ensures a Secure and Efficient Connection to your Ventilation System
• Durable ABS Plastic Construction for Long-lasting Performance in Outdoor Environments
• Cowled Design Prevents Rainwater and Wind from Entering the Ventilation System
• Integrated Backdraught Shutter / Damper Flap Prevents Reverse Airflow and Minimizes Unpleasant Odors or Draughts
• Ideal for Garden Sheds, Greenhouses, and other Outdoor Structures | Perfectly Suited for Use with Bathroom Extractor Fan, Tumble dryer, Cooker hood, Hydroponics, etc.

100mm / 4inch cowled vent wind baffle Grille ideal for mounting on an External wall that is in an exposed position and where an outlet will be open to bad weather. The baffled Grille has two advantages; it stops wind from rattling the shutter and also stops back draft when an extractor fan is switched off. Ideal for wind and rain protection. 100mm / 4inch diameter duct connection that fits standard ducting or wall sleeves. Single blade damper for Anti back draught. Easy screw fixing and connection to ducting. Duct cowling baffle and blade are easily removed for fitting & cleaning.