--- product_id: 454802992 title: "Kair Ducting Adaptor 110mm x 54mm to 100mm - 4 inch Rectangular to Round Straight Channel Connector for Converting to Different Size Duct Systems" brand: "kair" price: "57603CFA" currency: XOF in_stock: true category: "Kair" url: https://www.desertcart.sn/products/454802992-kair-ducting-adaptor-110mm-x-54mm-to-100mm-4-inch store_origin: SN region: Senegal --- # 100mm round spigot compatibility 110mm x 54mm rectangular fit Low static pressure drop Kair Ducting Adaptor 110mm x 54mm to 100mm - 4 inch Rectangular to Round Straight Channel Connector for Converting to Different Size Duct Systems **Brand:** kair **Price:** 57603CFA **Availability:** βœ… In Stock ## Summary > πŸ”„ Connect with Confidence β€” The Ultimate Ducting Adaptor for Smart Spaces ## Quick Answers - **What is this?** Kair Ducting Adaptor 110mm x 54mm to 100mm - 4 inch Rectangular to Round Straight Channel Connector for Converting to Different Size Duct Systems by kair - **How much does it cost?** 57603CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/454802992-kair-ducting-adaptor-110mm-x-54mm-to-100mm-4-inch) ## 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 - β€’ **Optimized Airflow:** Independently tested with minimal pressure drop to keep your ventilation efficient. - β€’ **Space-Savvy Design:** Compact adaptor ideal for tight installations where every centimeter counts. - β€’ **Trusted UK Quality:** Backed by Kair’s 100% satisfaction guarantee and compliance with Part F Building Regulations. - β€’ **Pro-Grade Durability:** Crafted from high-quality polystyrene/polypropylene for long-lasting performance. - β€’ **Seamless Size Conversion:** Effortlessly switch between rectangular and round duct systems without hassle. ## Overview The Kair Ducting Adaptor 110mm x 54mm to 100mm is a precision-engineered connector that converts rectangular ducting to round, perfect for compact HVAC setups. Made in the UK from durable polystyrene/polypropylene, it ensures superior airflow with low static pressure drop, complies with building regulations, and fits seamlessly with a wide range of ducting systems. Ideal for professional and DIY use, it’s your go-to solution for efficient, space-conscious ventilation. ## Description Kair Ducting Adaptor 110mm x 54mm to 100mm - 4 inch Rectangular to Round Straight Channel Connector 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. br> Requires round duct connector Part: DUCEK28 to connect to 100mm straight pipe - Part: DUCVKC250. 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 = 3.70 Pa - 30 l/s = 14.60 Pa - 60 l/s = 58.00 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, pipe requires additional connector. - Allows you to convert between round and rectangular ducting systems. - Kair short rectangular to round connector is perfect for installs where space is limited. - Kair 100% Satisfaction Guarantee. Compatible with the extensive range of plastic ducting fittings, outlets, and grilles ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004X4S1K0 | | ASIN | B004X4S1K0 | | Best Sellers Rank | #65,504 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #36 in Electrical Conduit Fittings | | Brand Name | Kair | | Color | White | | Connector Type | Adapter | | Customer Reviews | 4.6 4.6 out of 5 stars (563) | | Customer reviews | 4.6 4.6 out of 5 stars (563) | | Date First Available | 12 January 2016 | | Is Discontinued By Manufacturer | No | | Item Dimensions | 12 x 11.4 x 10.7 centimeters | | Item Weight | 0.09 Kilograms | | Manufacturer | Kair | | Manufacturer | Kair | | Manufacturer Part Number | DUCVKC253F | | Manufacturer reference | DUCVKC253F | | Material Type | Polystyrene | | Number of Packs | 1 | | Number of Pieces | 1 | | Product Dimensions | 12 x 11.4 x 10.7 cm; 90 g | | Size | 110mm x 54mm to 100mm | | Thread Size | 100mm | | Thread Type | UN | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Kair - **Colour:** White - **Item dimensions L x W x H:** 12 x 11.4 x 10.7 centimeters - **Material:** Polystyrene - **Size:** 110mm x 54mm to 100mm ## Images ![Kair Ducting Adaptor 110mm x 54mm to 100mm - 4 inch Rectangular to Round Straight Channel Connector for Converting to Different Size Duct Systems - Image 1](https://m.media-amazon.com/images/I/41BZCtM3oSL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - Kair Ducting Adaptor 220mm x 90mm to 150mm - 6 inch Rectangular to Round Straight Channel Connector for Converting to Different Size Duct Systems - Kair Rectangular Flat Ducting 220mm x 90mm - 1 Metre Length Flat Channel Pipe - Kair 90 Degree Vertical Elbow Bend 220mm x 90mm - 9 x 4 inch Rectangular Plastic Ducting Adaptor --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sn/products/454802992-kair-ducting-adaptor-110mm-x-54mm-to-100mm-4-inch](https://www.desertcart.sn/products/454802992-kair-ducting-adaptor-110mm-x-54mm-to-100mm-4-inch) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-09-15*