--- product_id: 70669884 title: "Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor" brand: "kair" price: "¥5538" currency: JPY in_stock: true category: "Kair" url: https://www.desertcart.jp/products/70669884-kair-110-x-54mm-to-100mm-90-degree-elbow-plastic store_origin: JP region: Japan --- # 110x54mm to 100mm fit 90° elbow bend Push-fit easy install Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor **Brand:** kair **Price:** ¥5538 **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?** ¥5538 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/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 - • **Durable UK-Made Build:** Crafted from high-quality polypropylene for long-lasting performance and compliance with Part F Building Regulations. - • **Space-Savvy 90° Bend:** Navigate tight ceiling voids and restricted spaces with a compact elbow design that maximizes airflow efficiency. - • **Plug & Play Installation:** Push-fit design means no fuss, no mess—just quick, secure connections that save you time on every project. - • **Seamless Duct Conversion:** Effortlessly switch between 110x54mm rectangular and 100mm round ducting for ultimate system flexibility. - • **Versatile HVAC Compatibility:** Perfect for bathrooms, kitchens, HVAC, and heat recovery systems—join the pros who trust Kair for superior airflow. ## Overview The Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor is a UK-made, durable polypropylene fitting designed to convert rectangular ducting to round with a space-saving 90° bend. Engineered for easy push-fit installation and tested for optimal airflow performance, it’s ideal for professional HVAC, ventilation, and extractor fan systems requiring reliable, compliant duct transitions in tight spaces. ## 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. ## 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 | 11,723 in DIY & Tools ( See Top 100 in DIY & Tools ) 13 in Wall Elbows 22 in Ducting | | Brand | Kair | | Colour | White | | Connector Type | Adapter | | Country of Origin | United Kingdom | | Customer Reviews | 4.6 4.6 out of 5 stars (681) | | 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 | | 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/31LDKrlXt0L.jpg) ![Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor - Image 3](https://m.media-amazon.com/images/I/41AXY4j-qkL.jpg) ![Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor - Image 4](https://m.media-amazon.com/images/I/41eMuLapJJL.jpg) ![Kair 110 x 54mm to 100mm 90 Degree Elbow Plastic Duct Adaptor - Image 5](https://m.media-amazon.com/images/I/41YfmZy1ElL.jpg) ## Available Options This product comes in different **Size** options. ## 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.jp/products/70669884-kair-110-x-54mm-to-100mm-90-degree-elbow-plastic](https://www.desertcart.jp/products/70669884-kair-110-x-54mm-to-100mm-90-degree-elbow-plastic) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-06*