--- product_id: 70669884 title: "Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor" brand: "kair" price: "€ 26.47" currency: EUR in_stock: true reviews_count: 13 category: "Kair" url: https://www.desertcart.gr/products/70669884-kair-110-x-54mm-to-100mm-90-degree-elbow-plastic store_origin: GR region: Greece --- # 100mm round compatibility 110x54mm rectangular fit 90° elbow for tight spaces Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor **Brand:** kair **Price:** € 26.47 **Availability:** ✅ In Stock ## Summary > ↩️ Elevate your airflow game with the ultimate duct adaptor! 🚀 ## Quick Answers - **What is this?** Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor by kair - **How much does it cost?** € 26.47 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/70669884-kair-110-x-54mm-to-100mm-90-degree-elbow-plastic) ## Best For - kair enthusiasts ## Why This Product - Trusted kair brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Space-Savvy 90° Elbow Design:** Navigate tight ceiling voids and restricted areas with a compact, efficient bend that maximizes airflow without compromise. - • **Durable UK-Made Polypropylene Build:** Crafted from high-quality plastic for long-lasting performance and resistance to temperature fluctuations from -15°C to +60°C. - • **Tested Airflow Efficiency & Compliance:** Independently verified by BSRIA/BRE and compliant with Part F Building Regulations, ensuring optimal ventilation performance. - • **Seamless Rectangular to Round Transition:** Effortlessly convert between 110x54mm rectangular and 100mm round ducting systems for ultimate versatility. - • **Push-Fit Installation with Pro-Level Finish:** Quick, tool-free assembly with optional silicone sealing for airtight, professional-grade duct connections. ## Overview The Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor is a UK-manufactured, high-quality polypropylene fitting designed to seamlessly connect rectangular and round duct systems. Its compact 90° bend enables installation in confined spaces like ceiling voids, while push-fit assembly ensures quick, reliable setup. Independently tested for airflow efficiency and compliant with building regulations, this adaptor is ideal for HVAC, extractor fans, and whole-house ventilation projects. ## Description Kair Elbow Bend Adaptor 110mm x 54mm to 100mm - 4 inch Rectangular to Round 90 Degree Bend Adapter - Female RECTANGULAR 110mm x 54mm The flat end is a female spigot and fits over 110mm x 54mm Rectangular Duct Pipe Part: DUCVKC249. ROUND 100mm / 4 inch Circular end is a 100mm round female spigot that will accept any male 100mm round fittings. If you want to connect to 100mm Round Pipe Part: DUCVKC250 we recommend using a 110mm x 54mm RECTANGULAR TO 100mm ROUND (Male Spigot) 90 Degree bend instead Part: DUCVKC237. Allows you to convert between round and rectangular ducting systems.Made in the UK using high-quality Polystyrene/Polypropylene plastic.Max / Min Temperature: +60c / -15c.Easy to install and durable, just push-fit duct and fittings together. For permanent fixings, seal joints with silicone sealant or tape.Airflow performance independently tested by BSRIA or BRE.Suitable to use in compliance with Part F Building Regulations.Static Pressure Drop in Pascals: 15 l/s = 8.10 Pa - 30 l/s = 33.10 Pa - 60 l/s = 136.40 Pa.Perfectly suited for ducting your Bathroom or Kitchen extractor fan, hydroponics, in-line extract Fans, tumble dryer, or cooker hood. This item can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, passive stack vent, positive input ventilation, air conditioning, HVAC, and Heat Recovery systems. Kair plastic rigid ducting is perfect for DIY and Trade use and provides superior airflow performance and durability versus flexible duct. Review: Connector - New venting angle connector is good, fits as per sizing and is good quality. Review: Great item. Does what it says it does :) - Spot on did exactly what it said it would do. Brilliant supplier and product. ## Features - RECTANGULAR END: 110mm x 54mm Fits over rectangular duct pipe. - ROUND END: 100mm (4 inch) Fits over other connectors and fittings. - Allows you to convert between 100mm round and 110mm x 54mm rectangular ducting systems. - 90 Degree elbow bend adaptors allows you to run duct inside ceiling voids or other areas where space is restricted. - Compatible with Kair plastic ducting range of fittings, outlets, and grilles. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004X4RTNU | | Best Sellers Rank | 7,114 in DIY & Tools ( See Top 100 in DIY & Tools ) 1 in Wall Elbows 11 in Ducting | | Brand | Kair | | Colour | White | | Connector Type | Adapter | | Connector type | Adapter | | Customer Reviews | 4.6 out of 5 stars 684 Reviews | | Exterior Finish | Natural/Polypropylene | | Item Dimensions | 14.3 x 11.6 x 6.9 centimetres | | Item Highlight | Fits over other connectors and fittings, Suitable for concealed installation, Male connection, Female connection | | Item Weight | 82 g | | Item dimensions L x W x H | 14.3 x 11.6 x 6.9 centimetres | | Manufacturer | Kair | | Material | Polypropylene | | Number of Packs | 1 | | Number of Pieces | 1 | | Part Number | DUCVKC236 | | Size | 110mm x 54mm to 100mm (Female) | | Thread Size | 100mm | | Thread Type | BSP | | Unit Count | 1.0 count | ## Product Details - **Brand:** Kair - **Colour:** White - **Connector type:** Adapter - **Exterior finish:** Natural/Polypropylene - **Item dimensions L x W x H:** 14.3 x 11.6 x 6.9 centimetres - **Item weight:** 82 g - **Material:** Polypropylene - **Size:** 110mm x 54mm to 100mm (Female) - **Thread size:** 100mm - **Thread type:** BSP ## Images ![Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor - Image 1](https://m.media-amazon.com/images/I/41o+xiybb5L.jpg) ![Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor - Image 2](https://m.media-amazon.com/images/I/61U-12qrR0L.jpg) ![Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor - Image 3](https://m.media-amazon.com/images/I/51GYmKnBYoL.jpg) ![Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor - Image 4](https://m.media-amazon.com/images/I/51lgWwUS1nL.jpg) ![Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor - Image 5](https://m.media-amazon.com/images/I/61DEkE-GhhL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Connector *by I***P on 26 September 2026* New venting angle connector is good, fits as per sizing and is good quality. ### ⭐⭐⭐⭐⭐ Great item. Does what it says it does :) *by S***N on 30 June 2026* Spot on did exactly what it said it would do. Brilliant supplier and product. ### ⭐⭐⭐⭐⭐ Portable Air con vent *by A***X on 13 May 2026* Saves having the zip up window cover for it as i had previously so got this instead see pic. Bit of manual modification but works perfectly and clips tightly to my top half window opening in front room and bedroom. Just the perfect solution ## Frequently Bought Together - Kair Elbow Bend Adaptor 110mm x 54mm to 100mm - 4 inch Rectangular to Round 90 Degree Bend Adapter for Converting to Different Size Plastic Ducting Systems - Female - Kair Rectangular Flat Ducting 110mm x 54mm - 1 Metre Length Flat Channel Pipe - Kair Rectangular Straight Connector 100mm x 54mm Flat Pipe Joint --- ## 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.gr/products/70669884-kair-110-x-54mm-to-100mm-90-degree-elbow-plastic](https://www.desertcart.gr/products/70669884-kair-110-x-54mm-to-100mm-90-degree-elbow-plastic) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-11-01*