--- product_id: 116445940 title: "VKE Air Vent Covers Exterior 100mm Gravity Grille Backdraft | Stainless Steel Extractor Vent Cover, Shutter Flaps Close Automatically 4 Inch Fits Only with Metal Ducts" brand: "calimaero" price: "¥9922" currency: JPY in_stock: true reviews_count: 13 category: "Calimaero" url: https://www.desertcart.jp/products/116445940-vke-air-vent-covers-exterior-100mm-gravity-grille-backdraft-stainless store_origin: JP region: Japan --- # noise & backdraft blocking design auto-closing shutter flaps seal tight 100mm stainless steel precision fit VKE Air Vent Covers Exterior 100mm Gravity Grille Backdraft | Stainless Steel Extractor Vent Cover, Shutter Flaps Close Automatically 4 Inch Fits Only with Metal Ducts **Brand:** calimaero **Price:** ¥9922 **Availability:** ✅ In Stock ## Summary > 🛡️ Elevate your ventilation game with smart, sleek protection! ## Quick Answers - **What is this?** VKE Air Vent Covers Exterior 100mm Gravity Grille Backdraft | Stainless Steel Extractor Vent Cover, Shutter Flaps Close Automatically 4 Inch Fits Only with Metal Ducts by calimaero - **How much does it cost?** ¥9922 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/116445940-vke-air-vent-covers-exterior-100mm-gravity-grille-backdraft-stainless) ## Best For - calimaero enthusiasts ## Why This Product - Trusted calimaero brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Noise-Reducing Design:** Heavy-duty shutters prevent fluttering and wind noise, perfect for homes on breezy hillsides. - • **Effortless Installation:** Pre-drilled holes and included screws make setup a breeze with standard tools. - • **Precision Engineered Fit:** Designed exclusively for 100mm metal ducts ensuring a seamless, secure installation. - • **Weatherproof Stainless Steel:** Brushed anti-rust steel guarantees durability and a sleek, modern facade upgrade. - • **Automatic Backdraft Protection:** Shutter flaps close instantly to block unwanted odors, pests, and rain—no manual effort needed. ## Overview The VKE Air Vent Cover is a premium 4-inch stainless steel extractor vent designed for metal ducts. Featuring corrosion-resistant brushed steel and automatic shutter flaps, it prevents backdrafts, pests, and weather intrusion while reducing noise. Easy to install with included screws and a rubber gasket, it’s engineered for lasting outdoor performance and a polished look. ## Description Product Description Living Comfort Our stainless steel dryer vent cover with movable louvers is the ideal solution for almost any ventilation system. The weather-resistant design allows it to be used on almost any exterior facade. Simple Installation Insert the nozzle into the ventilation pipe Attach the rubber gasket to the outer edge of the grill. Clamping eyelets hold the vent to the duct. Fix with screws Installation is a breeze, thanks to the pre-drilled holes and included screws. Reliable Air Exchange The flap works swiftly and faithfully even with very low airflow. Effective Protection The flap closes quickly to stop exhaust air from coming back in and to keep cold air out. Easy to Install The dryer vent cover is ready to install, complete with screws for a secure attachment and optimal sealing on the facade. Durable The flap and screws are made of weather-resistant, stainless steel designed for outdoor use. Review: Perfect replacement - Actually works - no more flapping in the wind! Review: Prevents backdrafts far more effectively than cheaper plastic alternatives. - The extractor vent from our kitchen hob opens onto a wall at the side of our house. Living at the top of a hill, the wind is channelled down the side of the house which creates quite a loud noise. The builders put a standard vent cover which didn’t seem to help. A few years ago I replaced it with a plastic shuttered grille which helped a little but did not eliminate the problem. The plastic shuttered grille disintegrated, perhaps from UV sun damage so I bought this stainless steel as a replacement. It was easy to install, clipping over the 150 mm extractor hose. It comes with self-tapping screws. No wall plugs are included so I used 5 mm plugs which worked fine. It was easy to line up the holes by first drilling through the holes with a 3 mm drill to create a mark on the brickwork then rotating the vent so I had clear access to drill the larger 5 mm holes for the plugs. I am delighted that I have finally found a solution that works. The stainless steel shutters are heavy enough not to flutter in the side wind but still open when the extractor fan is used. Whilst it is not cheap, I feel confident that it should last for many years to come. It also looks very smart. ## Features - WELL-MADE This calimaero VKE 4 inch wall vent cover with shutter flaps is made of brushed anti-rust and corrosion-resistant stainless steel with countersunk screw holes. The rubber gasket provided creates a tight seal between the vent and the wall. - PRODUCT FEATURES The flaps of our louvre extractor fan vent cover closes automatically when not in use. This will guard your equipment against animals, insects and protect you from unpleasant odors, noises, or rain from flowing back. Technical data: DN 100mm / 4 Inch, square dimensions 158 x 158mm, screw holes 137 x 137mm, depth 52mm. - VERSATILE APPLICATION This external vent cover is designed for your home improvement. This is ideal for passive ventilation, air conditioning, HVAC, and Heat Recovery System. The typical fluttering noises should be considered when installing next to living rooms. - EASY INSTALLATION This extractor grille cover can be installed with standard tools. You only need to insert into the ventilation pipe or flexible pipe and fasten it to the wall with the screws provided. - NOTE This is to be installed in metal ducts only. Measure the diameter of your duct before purchasing. We are experts in ventilation for more than 40 years. If you have any questions or complaints, please contact our customer service directly. Your request will be processed immediately. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07L97878K | | Best Sellers Rank | 345,380 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,757 in Registers, Grilles & Vents | | Brand | calimaero | | Colour | Steel | | Country of Origin | China | | Customer Reviews | 4.4 out of 5 stars 3,961 Reviews | | Item Dimensions L x W | 15.8L x 15.8W centimetres | | Item Length | 158 Millimetres | | Item Weight | 0.18 Pounds | | Item weight | 0.18 Pounds | | Manufacturer | calimaero | | Material | Stainless Steel | | Nominal Wall Thickness | 0.5 till 1.5 millimeter millimeters | | Nominal wall thickness | 0.5 till 1.5 millimeter millimeters | | Outside Diameter | 100 Millimetres | | Product dimensions | 15.8L x 15.8W centimetres | ## Product Details - **Brand:** calimaero - **Colour:** Steel - **Item length:** 158 Millimetres - **Item weight:** 0.18 Pounds - **Manufacturer:** calimaero - **Material:** Stainless Steel - **Nominal wall thickness:** 0.5 till 1.5 millimeter millimeters - **Outside diameter:** 100 Millimetres - **Product dimensions:** 15.8L x 15.8W centimetres - **Specific uses for product:** clothes drying, kitchen exhaust, HVAC systems ## Images ![VKE Air Vent Covers Exterior 100mm Gravity Grille Backdraft | Stainless Steel Extractor Vent Cover, Shutter Flaps Close Automatically 4 Inch Fits Only with Metal Ducts - Image 1](https://m.media-amazon.com/images/I/71x+FEYVfgL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: what is the diameter of the round pipe? I need 120mm** A: Good day, There is no 120mm if you have a ventilation pipe of 125mm, then take a 125mm VKE **Q: Hi. Can this be used for a gas boiler flue. Many thanks** A: Hi Kirsten t , mmm this question should be directed to your boiler manufacturer. Boiler flues should not be obstructed in any way. If you want to provide a flue low pressure equalizing valve, using a corrosion proof material, such as stainless steel, it would have to be mounted in an adapter ‘box’ to provide for full deflection of the louvre plates, when the pressure in the flue is below atmospheric pressure. Mounting it inside the flue, would expose the mechanism to soot and or creosote ( depending on the fuel you are using ) In the exhaust gas flow is not good practice. I would strongly advise asking your boiler manufacturer this question. ‘Google’ their ‘official’ web site, ask for technical support . In my experience, I have found the ‘expert engineers ‘ will give you a definitive answer. It is very important not to interfere with the aspiration of the boiler , which has been carefully calculated, to provide efficient combustion and compliance with emission regulations . **Q: Can it be used for tumble dryers ?** A: Good morning, you can use the VKE 100 for your tumble dryer because it is made of stainless steel and will not rust. **Q: Hi, i bought 3 4inch air vents on 4th feb. going to buy another 4" & 5" & see that you have put the price up by £5! what is the reason for that?** A: Good day, At the beginning of the year, the suppliers raised surcharges, these must be apportioned. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect replacement *by B***5 on 28 December 2025* Actually works - no more flapping in the wind! ### ⭐⭐⭐⭐⭐ Prevents backdrafts far more effectively than cheaper plastic alternatives. *by P***Y on 22 August 2023* The extractor vent from our kitchen hob opens onto a wall at the side of our house. Living at the top of a hill, the wind is channelled down the side of the house which creates quite a loud noise. The builders put a standard vent cover which didn’t seem to help. A few years ago I replaced it with a plastic shuttered grille which helped a little but did not eliminate the problem. The plastic shuttered grille disintegrated, perhaps from UV sun damage so I bought this stainless steel as a replacement. It was easy to install, clipping over the 150 mm extractor hose. It comes with self-tapping screws. No wall plugs are included so I used 5 mm plugs which worked fine. It was easy to line up the holes by first drilling through the holes with a 3 mm drill to create a mark on the brickwork then rotating the vent so I had clear access to drill the larger 5 mm holes for the plugs. I am delighted that I have finally found a solution that works. The stainless steel shutters are heavy enough not to flutter in the side wind but still open when the extractor fan is used. Whilst it is not cheap, I feel confident that it should last for many years to come. It also looks very smart. ### ⭐⭐⭐⭐ Looks good, but a bit noisy. *by B***S on 8 December 2019* Looks much better than the old and fading plastic one it replaced. Quite easy to fit, as I first made a cardboard template to make sure the wall plugs for the retaining screws were correctly lined up and level. Might have been a bit tricky otherwise, as the screw holes are quite small, and the vent stand away from the wall (there's a rubber gasket between the vent and the wall). The only problem is that it's a bit noisy when the cooker extractor is running - the vent slats tend to "flutter" and knock against each other, making a tinny rattling noise. It's only noticeable outside the house, so as long as the neighbours can't hear it, we'll be ok. I've also fitted an internal spring baffle to stop draughts, so this may be reducing the air flow through the vent. But given the choice between draughts in the kitchen and a bit of noise outside, I'll go with the noise! ## Frequently Bought Together - calimaero® VKE 4" Inch Dryer Vent Cover – Outdoor Stainless Steel Grille with Moving Flaps – Fits Only with Metal Ducts for HVAC & Dryer Systems - calimaero® 2 Pack Bird Stop Dryer Vent Grill Screen Guard Insert 8.8in x 8.8in Customizable 3inch to 8inch Stops Nesting in Bathroom Exhaust Vents - calimaero® HWG 4" Dryer Vent Cover Outdoor Walls - Cowled External Extractor Fan Vent Dryer Cover - Robust and Weatherproof Stainless Steel Outdoor Dryer Vent Cover - Fits Only with Metal Pipes --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/116445940-vke-air-vent-covers-exterior-100mm-gravity-grille-backdraft-stainless](https://www.desertcart.jp/products/116445940-vke-air-vent-covers-exterior-100mm-gravity-grille-backdraft-stainless) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-19*