--- product_id: 354403212 title: "Vents 100mm Black External Gravity Vent Grille – 155x155mm Diameter Outside Wall Cover for Extractor Fans, Bathroom & Tumble Dryer" brand: "vents uk" price: "31425CFA" currency: XOF in_stock: true reviews_count: 9 category: "Vents Uk" url: https://www.desertcart.sn/products/354403212-vents-100mm-black-external-gravity-vent-grille-155x155mm-diameter-outside store_origin: SN region: Senegal --- # Push-fit quick installation 100mm standard duct fit 3 gravity non-return shutters Vents 100mm Black External Gravity Vent Grille – 155x155mm Diameter Outside Wall Cover for Extractor Fans, Bathroom & Tumble Dryer **Brand:** vents uk **Price:** 31425CFA **Availability:** βœ… In Stock ## Summary > πŸ–€ Elevate your airflow game with sleek, smart ventilation! ## Quick Answers - **What is this?** Vents 100mm Black External Gravity Vent Grille – 155x155mm Diameter Outside Wall Cover for Extractor Fans, Bathroom & Tumble Dryer by vents uk - **How much does it cost?** 31425CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/354403212-vents-100mm-black-external-gravity-vent-grille-155x155mm-diameter-outside) ## Best For - vents uk enthusiasts ## Why This Product - Trusted vents uk brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Smart Gravity Shutters:** Three non-return flaps block draughts, rain, noise, and pests automatically. - β€’ **Regulation-Ready Ventilation:** Built to meet UK Building Regulations Approved Document F for peace of mind. - β€’ **Effortless Push-Fit Installation:** Snap-on design ensures a secure, airtight fit in minutesβ€”no fuss, no tools. - β€’ **Seamless 100mm Duct Compatibility:** Fits all standard 100mm ventilation ducts for effortless integration. - β€’ **Sleek Black Finish for Modern Spaces:** Compact 155x155mm faceplate blends perfectly with contemporary exteriors. ## Overview The Vents 100mm Black External Gravity Vent Grille offers a durable, weather-resistant solution for external ventilation needs. Featuring a 100mm rear spigot for standard ducting, three gravity-operated non-return shutters to prevent backflow and external intrusions, and a push-fit installation system, it ensures quick, secure fitting. Its compact 155x155mm black faceplate provides a clean, modern finish, making it ideal for bathrooms, kitchens, HVAC, and whole-house ventilation systemsβ€”all compliant with UK Building Regulations. ## Description Product Description Overview The Vents Black 100mm Gravity Grille is designed to provide reliable external ventilation with effective back-draught protection. Manufactured from durable, weather-resistant plastic and finished in a sleek black colour, it delivers both performance and a clean, modern exterior appearance. With a 100mm (4") rear spigot and integrated gravity shutters, this grille is ideal for terminating duct runs in domestic and light commercial ventilation systems. Key Features Fits standard 100mm ducting with 100mm rear spigot Overall external size 155 Γ— 155 mm for a neat wall finish Three gravity non-return flaps to reduce backflow and draughts Simple push-fit connection for quick installation Manufactured in line with UK Building Regulations Approved Document F Benefits The built-in gravity shutters automatically open during extraction and close when airflow stops, helping to block cold draughts, rain ingress, insects, odours, and external noise from entering the duct system. Its compact 155 Γ— 155 mm faceplate provides a tidy, professional finish on external walls, while the black colour blends well with modern brickwork, render, and cladding. The push-fit 100mm rear spigot ensures fast connection to standard ducting, with the option to seal using mastic, cement, or tape for a secure, airtight installation. Applications Suitable for bathroom and kitchen extractor fans, whole-house ventilation systems, HVAC installations, passive airflow setups, and heat recovery systems. Ideal as an external wall termination grille for 100mm ducting. Installation Notes Designed for direct push-fit installation into 100mm ducting. For best results, ensure the grille is securely seated and sealed where necessary to prevent air leakage. Manufactured to support compliant domestic ventilation installations in line with Approved Document F. Review: good quality - good quality and easy to install Review: Great value and works well. - As described and does its job well. ## Features - Fits standard 100mm ducting – Gravity grille with 100mm (4”) rear spigot; overall external size 155 Γ— 155 mm for a neat wall or ceiling finish. - Non-return shutters – Three gravity flaps open with airflow and close when the fan is off, helping block draughts, rain, noise, odours, insects, and debris. - Push-fit installation – Simple push-fit connection to 100mm ducting; can be sealed with mastic, cement, or tape if required for a secure finish. - Wide ventilation compatibility – Suitable for bathroom and kitchen extractor fans, whole-house ventilation, HVAC, passive airflow, and heat recovery systems. - Building Regulations compliant – Manufactured in line with Approved Document F, supporting compliant domestic ventilation installations. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09BZWH4JQ | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 2,216 in DIY & Tools ( See Top 100 in DIY & Tools ) 3 in Registers, Grilles & Vents | | Colour | 100 Mm Black Gravity Grille | | Customer Reviews | 4.5 4.5 out of 5 stars (944) | | Date First Available | 5 Aug. 2021 | | Item Weight | 100 g | | Manufacturer | VENTS UK | | Material | Plastic | | Package Dimensions | 15.3 x 15.2 x 4.4 cm; 100 g | | Special Features | Easy to Install | ## Images ![Vents 100mm Black External Gravity Vent Grille – 155x155mm Diameter Outside Wall Cover for Extractor Fans, Bathroom & Tumble Dryer - Image 1](https://m.media-amazon.com/images/I/51KG91N0n1L.jpg) ## Available Options This product comes in different **Color** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ good quality *by P***R on 9 February 2026* good quality and easy to install ### ⭐⭐⭐⭐⭐ Great value and works well. *by J***M on 27 January 2026* As described and does its job well. ### ⭐⭐⭐⭐ Perfectly adequate but no fixings included *by D***E on 24 December 2025* Fine for the job - no fixings were the only disappointment and hence the 4 star review ## Frequently Bought Together - Vents 4 inch Black External Gravity Grille Air Vent Cover 100 mm Extractor Fan Back Draught Shutter Covers Ducting Tumble Dryer Bathroom Outside Wall Ventilation Hose Duct Grill - Kair PVC Flexible Hose 102mm External Diameter / 100mm - 4 inch Universal Tumble Dryer, Cooker Hood, Extractor Fan, Air Conditioner Hose - 3 Metre Length - 100mm Pack of 2 Adjustable from 90-110mm Stainless Steel Pipe Clamp Secure Hose Clip Inline Duct Extractor Fan Connector Cooker Hood --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/354403212-vents-100mm-black-external-gravity-vent-grille-155x155mm-diameter-outside](https://www.desertcart.sn/products/354403212-vents-100mm-black-external-gravity-vent-grille-155x155mm-diameter-outside) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-11*