Upgrade your ventilation system with our high-performance Gravity Grille Vent. Designed to complem...Upgrade your ventilation system with our high-performance Gravity Grille Vent. Designed to complement plate extractor fans, this external louvred grille automatically opens with airflow and closes when idle—preventing cold drafts, rain ingress, and pests from entering. Ideal for domestic, commercial, and industrial exhaust applications, the grille is made from durable, UV-stabilised plastic suitable for outdoor wall mounting. Whether you’re ventilating a kitchen, workshop, warehouse, or commercial premises, this gravity flap vent ensures efficient air outflow with low resistance. It is available in 5 sizes: 200mm, 250mm, 315mm, 355mm, or 400mm to match your plate fan or duct size. The gravity louvres automatically open with fan airflow and close when off, preventing reverse airflow and debris entry. Its weatherproof design is built from robust, UV-stabilised plastic ideal for long-term external wall use. The simple surface mounting features pre-drilled mounting holes for fast installation on walls or duct openings. It has a universal application, perfect for extractor systems in homes, kitchens, workshops, offices, warehouses, and industrial buildings. Manufacturer: CRW UK LTD.
B&Q - Grey Gravity Grille Vent For Extractor Plate Fans 250mm External Plastic Louvered Wall Vent Cover For Hvac & DuctingFree delivery in 1–3 days£33.99Visit shop →
B&Q - Grey Gravity Grille Vent For Extractor Plate Fans 315mm External Plastic Louvered Wall Vent Cover For Hvac & DuctingFree delivery in 1–3 days£37.99Visit shop →
B&Q - Grey Gravity Grille Vent For Extractor Plate Fans 355mm External Plastic Louvered Wall Vent Cover For Hvac & DuctingFree delivery in 1–3 days£41.99Visit shop →
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Upgrade your ventilation system with our high-performance Gravity Grille Vent. Designed to complement plate extractor fans, this external louvred grille automatically opens with airflow and closes when idle—preventing cold drafts, rain ingress, and pests from entering. Ideal for domestic, commercial, and industrial exhaust applications, the grille is made from durable, UV-stabilised plastic suitable for outdoor wall mounting. Whether you’re ventilating a kitchen, workshop, warehouse, or commercial premises, this gravity flap vent ensures efficient air outflow with low resistance. It is available in 5 sizes: 200mm, 250mm, 315mm, 355mm, or 400mm to match your plate fan or duct size. The gravity louvres automatically open with fan airflow and close when off, preventing reverse airflow and debris entry. Its weatherproof design is built from robust, UV-stabilised plastic ideal for long-term external wall use. The simple surface mounting features pre-drilled mounting holes for fast installation on walls or duct openings. It has a universal application, perfect for extractor systems in homes, kitchens, workshops, offices, warehouses, and industrial buildings. Manufacturer: CRW UK LTD.