--- product_id: 51173976 title: "Ducting Pipe Non Return Valve 100mm Round Duct Rigid Tube Connector with Shutter Extractor Fan Backdraft Damper Stopper KO100-22" brand: "mkk" price: "2846 kr" currency: ISK in_stock: true category: "Mkk" url: https://www.desertcart.is/products/51173976-ducting-pipe-non-return-valve-100mm-round-duct-rigid-tube store_origin: IS region: Iceland --- # Quick & easy installation Ø100mm perfect fit Backdraft damper blocks reverse flow Ducting Pipe Non Return Valve 100mm Round Duct Rigid Tube Connector with Shutter Extractor Fan Backdraft Damper Stopper KO100-22 **Brand:** mkk **Price:** 2846 kr **Availability:** ✅ In Stock ## Summary > 🚀 Stop drafts, start comfort — the smart ducting upgrade you didn’t know you needed! ## Quick Answers - **What is this?** Ducting Pipe Non Return Valve 100mm Round Duct Rigid Tube Connector with Shutter Extractor Fan Backdraft Damper Stopper KO100-22 by mkk - **How much does it cost?** 2846 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/51173976-ducting-pipe-non-return-valve-100mm-round-duct-rigid-tube) ## Best For - mkk enthusiasts ## Why This Product - Trusted mkk brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** Lightweight PVC design ensures a quick, no-fuss installation every time. - • **Backdraft Blocker:** Prevents cold air and unwanted drafts from sneaking back inside your space. - • **Compact & Discreet:** Sleek white finish blends seamlessly with your ducting system, maintaining a clean aesthetic. - • **Durable & Reliable:** Crafted from high-quality PVC with a 2-year manufacturer warranty for peace of mind. - • **Seamless Ø100mm Integration:** Fits snugly into standard round duct pipes for a flawless connection. ## Overview The KO100-22 Ducting Pipe Non Return Valve is a 100mm round PVC connector designed to join duct pipes securely while preventing backflow with its integrated shutter damper. Lightweight and easy to install, it ensures efficient airflow control and energy savings, backed by a 2-year warranty. ## Description Shop Ducting Pipe Non Return Valve 100mm Round Duct Rigid Tube Connector with Shutter Extractor Fan Backdraft Damper Stopper KO100-22. Free delivery on eligible orders of £20 or more. ## Features - Connector fits into Ø100mm round pipe ducting - Equipped with a back draft damper for back flow prevention - Quick and easy fit - Lightweight Material: PVC ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00FCE0RSE | | Best Sellers Rank | 24,907 in Garden ( See Top 100 in Garden ) 583 in Garden Hose Parts & Connectors | | Brand | MKK | | Colour | White | | Connector Type | Plug | | Country of Origin | China | | Customer Reviews | 4.4 4.4 out of 5 stars (3,594) | | Exterior Finish | Glatte Kunststoffoberfläche | | Included Components | No | | Item Dimensions | 10 x 10 x 6 centimetres | | Item Type Name | Building material | | Manufacturer | Armar Trading LTD | | Manufacturer Warranty Description | 2 year manufacturer guarantee. | | Material | Polyvinyl Chloride | | Model Number | KO100-22 | | Number of Packs | 1 | | Number of Pieces | 1 | | Part Number | A289a_SML | | Set Name | Small White | | Size | Klein | | Thread Size | M100 | | Thread Type | UN | | Unit Count | 1 unité | ## Product Details - **Brand:** MKK - **Colour:** White - **Connector type:** Plug - **Exterior finish:** Glatte Kunststoffoberfläche - **Item dimensions L x W x H:** 10 x 10 x 6 centimetres - **Material:** Polyvinyl Chloride - **Number of pieces:** 1 - **Size:** Klein - **Thread size:** M100 - **Thread type:** UN ## Images ![Ducting Pipe Non Return Valve 100mm Round Duct Rigid Tube Connector with Shutter Extractor Fan Backdraft Damper Stopper KO100-22 - Image 1](https://m.media-amazon.com/images/I/410JRbLJ-6L.jpg) ![Ducting Pipe Non Return Valve 100mm Round Duct Rigid Tube Connector with Shutter Extractor Fan Backdraft Damper Stopper KO100-22 - Image 2](https://m.media-amazon.com/images/I/21GyHRFfkpL.jpg) ![Ducting Pipe Non Return Valve 100mm Round Duct Rigid Tube Connector with Shutter Extractor Fan Backdraft Damper Stopper KO100-22 - Image 3](https://m.media-amazon.com/images/I/41sAkEnY3NL.jpg) ![Ducting Pipe Non Return Valve 100mm Round Duct Rigid Tube Connector with Shutter Extractor Fan Backdraft Damper Stopper KO100-22 - Image 4](https://m.media-amazon.com/images/I/21oxGGIT5lL.jpg) ![Ducting Pipe Non Return Valve 100mm Round Duct Rigid Tube Connector with Shutter Extractor Fan Backdraft Damper Stopper KO100-22 - Image 5](https://m.media-amazon.com/images/I/21+ZIu88swL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Questions & Answers **Q: Do this product have a spring to close the back shutter? Or does is use gravity to close it once the flow stops?** A: Gravity - it does rattle in the wind **Q: Can this be fitted on a 45 deg slop downwards to the outside vent and will it still work fully? Thanks** A: Oh not so sure it will stay closed at that angle. I have mine fitted on a flat surface and it works perfect. **Q: Is this product suitable for extracting cooking fumes and steam?** A: Hi I have used this item to prevent a back draught in ducting for an online bathroom steam extraction system. **Q: On an in-line fan. where is the best place to put one of these? before the fan or after? and does it go onto the fan spigots? or the end of the ducts?** A: It goes after the fan in the exhaust direction to prevent draughts returning through the vent back into the room/device being vented. It is designed to fit in line in the pipework and will need glueing into rigid pipework or securing with a large pair of jubilee clips into flexible pipes whether plastic or aluminium. You should find on a reasonable external vent kit that it also contains a non return flap, however if you're hooking up multiple rooms in series (i.e. on a single pipe), these also reduce the amount of noise which leaks through the vents ## Frequently Bought Together - Connector with Backflow Flap, Check Valve, Connector, Ventilation Pipe, Round Duct, Ventilation System, Pipe Connector, Diameter 100 mm, White - EesTeck 4" (Diameter) Adjustable 304 Stainless Steel Duct Clamps Hose Clamp Pipe Clamp Air Ducting Clamp worm drive hose clamps (4Pcs, 91mm-114mm) - AC Infinity Flexible 4-Inch Aluminum Ducting, Heavy-Duty Four-Layer Protection, 25-Feet Long for Heating Cooling Ventilation and Exhaust --- ## 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.is/products/51173976-ducting-pipe-non-return-valve-100mm-round-duct-rigid-tube](https://www.desertcart.is/products/51173976-ducting-pipe-non-return-valve-100mm-round-duct-rigid-tube) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-11-09*