Vents 100Mm Black External Gravity Vent Grille – 155X155Mm Diameter outside Wall
--Fits standard 100mm ducting \u2013 Gravity grille with 100mm (4\u201D) rear spigot; overall external size 155 \u00D7 155 mm for a neat wall or ceiling finish.\n--Non-return shutters \u2013 Three gravity flaps open with airflow and close when the fan is off, helping block draughts, rain, noise, odours, insects, and debris.\n--Push-fit installation \u2013 Simple push-fit connection to 100mm ducting; can be sealed with mastic, cement, or tape if required for a secure finish.\n--Wide ventilation compatibility \u2013 Suitable for bathroom and kitchen extractor fans, whole-house ventilation, HVAC, passive airflow, and heat recovery systems.\n--Building Regulations compliant \u2013 Manufactured in line with Approved Document F, supporting compliant domestic ventilation installations.\nProduct Description\nOverview\n The Vents Black 100mm Gravity Grille is designed to provide reliable external ventilation with effective back-draught protection. Manufactured from durable, weather-resistant .
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