--- product_id: 94155386 title: "9\" x 3\" Extendable Combination Cavity Wall Sleeve Vent with Terracotta Air Brick" brand: "smarthome" price: "382.88 DT" currency: TND in_stock: true reviews_count: 3 url: https://www.desertcart.tn/products/94155386-9-x-3-extendable-combination-cavity-wall-sleeve-vent-terracotta store_origin: TN region: Tunisia --- # Adjustable length 190-335mm 5500mmΒ² max airflow area Durable high-impact styrene 9" x 3" Extendable Combination Cavity Wall Sleeve Vent with Terracotta Air Brick **Brand:** smarthome **Price:** 382.88 DT **Availability:** βœ… In Stock ## Summary > 🌬️ Breathe smarter, live fresher β€” ventilation that adapts to your space! ## Quick Answers - **What is this?** 9" x 3" Extendable Combination Cavity Wall Sleeve Vent with Terracotta Air Brick by smarthome - **How much does it cost?** 382.88 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/94155386-9-x-3-extendable-combination-cavity-wall-sleeve-vent-terracotta) ## Best For - smarthome enthusiasts ## Why This Product - Trusted smarthome brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Custom Fit Ventilation:** Extendable design fits wall widths 50-100mm for seamless installation. - β€’ **Easy Installation Pack:** Comes in a convenient 10-pack, perfect for professional upgrades or home renovations. - β€’ **Optimized Airflow Efficiency:** Integral wind baffle maximizes ventilation while blocking draughts and light intrusion. - β€’ **Weather-Resistant Durability:** Robust terracotta finish and high-impact materials ensure long-lasting performance outdoors. - β€’ **Condensation Control Certified:** Meets NHBC standards to reduce moisture buildup and improve indoor air quality. ## Overview This 9" x 3" extendable cavity wall vent with terracotta air brick combines adjustable sizing (190-335mm extension) and a 5500mmΒ² airflow area to optimize home ventilation. Made from durable high-impact styrene with a weatherproof terracotta finish, it features an integral wind baffle to reduce draughts and light intrusion. Certified by NHBC for condensation control, it’s ideal for enhancing indoor air quality and appliance efficiency. ## Description 9" x 3" Extendable Combination Cavity Wall Sleeve Vent with Terracotta Air Brick ## Features - EXTENDABLE WALL VENT - This pack of 10 in-a-box air brick vents is highly effective for enhancing air circulation within your home. It's specifically designed to provide proper ventilation for heating and gas appliances, ensuring optimal operation and reducing condensation, thus improving indoor air quality and comfort. - HIGH-QUALITY MATERIAL - Air brick flood covers are made from durable, high-impact styrene materials, finish robust terracotta air bricks and strong plastic components and can withstand various weather conditions, ensuring the vent remains functional over long periods, even in harsh environments. - INTEGRAL WIND BAFFLE - Air brick cowl vent featuring an integral wind baffle that optimises airflow efficiency while minimising the impact of external draughts and preventing unwanted light intrusion, is engineered to deliver excellent airflow with a maximum equivalent area of 5500mmΒ² of free air space. - VERSATILE DESIGN - This cowl vent reduces draughts and light intrusion, creating a more comfortable indoor environment. It's easy to install and meets the stringent requirements set by the National House Building Council (NHBC) for controlling condensation in buildings. - SIZE - This black air vent measures 9cm (L) x 3cm (W) and can fit different wall widths from 50mm to 100mm and weighs 1.7kg per box. It can extend horizontally by adding units ranging from 190mm to 335mm, is finished with a louvre vent for internal use and an air brick for external use. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Home.smart | | Part Number | HS-940-TR | | Item Weight | 635 g | | Manufacturer reference | HS-940-TR | | Item Package Quantity | 1 | | Item Weight | 635 g | ## Images ![9" x 3" Extendable Combination Cavity Wall Sleeve Vent with Terracotta Air Brick - Image 1](https://m.media-amazon.com/images/I/61xwbr0fjNL.jpg) ![9" x 3" Extendable Combination Cavity Wall Sleeve Vent with Terracotta Air Brick - Image 2](https://m.media-amazon.com/images/I/71agyxv32YL.jpg) ![9" x 3" Extendable Combination Cavity Wall Sleeve Vent with Terracotta Air Brick - Image 3](https://m.media-amazon.com/images/I/71RYBBc7H9L.jpg) ![9" x 3" Extendable Combination Cavity Wall Sleeve Vent with Terracotta Air Brick - Image 4](https://m.media-amazon.com/images/I/71OpxOTjwoL.jpg) ![9" x 3" Extendable Combination Cavity Wall Sleeve Vent with Terracotta Air Brick - Image 5](https://m.media-amazon.com/images/I/81jatiWmqyL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Versatile Cavity Wall Vent Kit *by P***R on 1 November 2023* I needed to put a vent in the wall on the front of my house to run a 6 inch Air con exhaust and didn't want to restrict the air flow so opted to fit a 9 inch vent and duct. This Vent kit is supplied with a through the wall duct tube which is extendable to fit a variety of wall thicknesses and includes a terracotta coloured vent for outside and a white vent cover for inside.I didn't need the inside cover as I made an adaptor to enable me to couple the vent hose from my air conditioning unit to the duct. The outside vent was a good fit for the hole after removing a 9 inch brick from the outside wall and was easily cemented in place.I found this vent kit easy to fit and all of the included parts seem well made. I think it is a good value kit for the price and I would certainly buy again if I need to put another vent elsewhere. ### ⭐⭐⭐ Product OK but arrived damaged *by D***S on 2 May 2023* I'd have probably given it 5 star but the corner was damaged. It was still functional so not necessary to return it. ### ⭐⭐⭐⭐⭐ Extendable air brick *by P***L on 23 January 2022* Needed the air brick for a Fluless gas fire we were having fitted in the lounge. Easy to fit and does the job well ## Frequently Bought Together - 9" x 3" Extendable Combination Cavity Wall Sleeve Vent with Terracotta Air Brick - Timloc Terracotta Hooded Cowl 9" x 3" Vent Cover for Air Bricks Grilles Extractors --- ## 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.tn/products/94155386-9-x-3-extendable-combination-cavity-wall-sleeve-vent-terracotta](https://www.desertcart.tn/products/94155386-9-x-3-extendable-combination-cavity-wall-sleeve-vent-terracotta) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-07*