--- product_id: 70669884 title: "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" brand: "kair" price: "135.29 DT" currency: TND in_stock: true category: "Kair" url: https://www.desertcart.tn/products/70669884-kair-elbow-bend-adaptor-110mm-x-54mm-to-100mm-4 store_origin: TN region: Tunisia --- # 100mm round compatibility 110mm x 54mm rectangular fit 90° elbow bend for tight spaces 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 **Brand:** kair **Price:** 135.29 DT **Availability:** ✅ In Stock ## Summary > ↩️ Upgrade your airflow game with the ultimate ducting adaptor! ## Quick Answers - **What is this?** 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 by kair - **How much does it cost?** 135.29 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/70669884-kair-elbow-bend-adaptor-110mm-x-54mm-to-100mm-4) ## 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 Design:** 90-degree elbow bend ideal for discreet installation in ceiling voids and tight spots. - • **Versatile HVAC Solution:** Perfect for bathroom extractors, kitchen hoods, HVAC, and whole-house ventilation systems. - • **Plug & Play Installation:** Push-fit design for quick setup—seal with silicone for a permanent, airtight finish. - • **Premium UK Craftsmanship:** Durable polypropylene construction ensures longevity and reliable airflow performance. - • **Seamless Size Conversion:** Effortlessly switch between 110x54mm rectangular and 100mm round ducting systems. ## Overview The Kair Elbow Bend Adaptor converts 110mm x 54mm rectangular ducting to 100mm round with a 90-degree bend, crafted from durable polypropylene in the UK. Designed for easy push-fit installation and tested for optimal airflow, it’s perfect for professional-grade HVAC, kitchen, and bathroom ventilation setups where space is limited. ## 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 | 9,206 in DIY & Tools ( See Top 100 in DIY & Tools ) 4 in Wall Elbows 18 in Ducting | | Brand | Kair | | Colour | White | | Connector Type | Adapter | | Country of Origin | United Kingdom | | Customer Reviews | 4.5 4.5 out of 5 stars (661) | | Exterior Finish | Natural/Polypropylene | | Item Dimensions | 14.3 x 11.6 x 6.9 centimetres | | Item Weight | 0.18 Pounds | | Manufacturer | Kair | | Material | Polypropylene | | 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:** 0.18 Pounds - **Material:** Polypropylene - **Size:** 110mm x 54mm to 100mm (Female) - **Thread size:** 100mm - **Thread type:** BSP ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/41o+xiybb5L.jpg) ![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 - Image 2](https://m.media-amazon.com/images/I/61U-12qrR0L.jpg) ![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 - Image 3](https://m.media-amazon.com/images/I/51GYmKnBYoL.jpg) ![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 - Image 4](https://m.media-amazon.com/images/I/51lgWwUS1nL.jpg) ![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 - Image 5](https://m.media-amazon.com/images/I/61DEkE-GhhL.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.tn/products/70669884-kair-elbow-bend-adaptor-110mm-x-54mm-to-100mm-4](https://www.desertcart.tn/products/70669884-kair-elbow-bend-adaptor-110mm-x-54mm-to-100mm-4) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-11*