--- product_id: 72686694 title: "Kair 220 x 90mm to 150mm Rectangular-to-Round Duct Adaptor" brand: "kair" price: "R$534" currency: BRL in_stock: true category: "Kair" url: https://www.desertcart.com.br/products/72686694-kair-220-x-90mm-to-150mm-rectangular-to-round-duct store_origin: BR region: Brazil --- # 150mm round spigot 220x90mm rectangular fit Low static pressure drop Kair 220 x 90mm to 150mm Rectangular-to-Round Duct Adaptor **Brand:** kair **Price:** R$534 **Availability:** ✅ In Stock ## Summary > 🔄 Transform your airflow game with Kair’s sleek duct adaptor! ## Quick Answers - **What is this?** Kair 220 x 90mm to 150mm Rectangular-to-Round Duct Adaptor by kair - **How much does it cost?** R$534 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/72686694-kair-220-x-90mm-to-150mm-rectangular-to-round-duct) ## 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 - • **Optimized Airflow:** Independently tested with minimal static pressure drop ensuring peak ventilation efficiency. - • **Space-Savvy Design:** Compact profile ideal for tight spaces without compromising airflow efficiency. - • **Pro-Grade Durability:** Crafted from high-quality UK-made polystyrene/polypropylene for long-lasting performance. - • **Plug & Play Installation:** Push-fit design for quick setup; compatible with Kair’s full range of ducting accessories. - • **Seamless Duct Conversion:** Effortlessly switch between rectangular and round ducting systems for ultimate installation flexibility. ## Overview The Kair 220 x 90mm to 150mm Rectangular-to-Round Duct Adaptor is a UK-made, durable plastic connector designed to convert rectangular ducting to round ducting seamlessly. Engineered for tight spaces, it features a push-fit installation and is independently tested for low static pressure drop, making it perfect for HVAC, kitchen, bathroom, and whole-house ventilation systems. ## Description Kair Ducting Adaptor 220mm x 90mm to 150mm - 6 inch Rectangular to Round Straight Channel Connector RECTANGULAR 220mm x 90mm The flat end is a female spigot and fits over 220mm x 90mm Rectangular Duct Pipe Part: DUCVKC5704 or flexible hose Part: DUCR3M/220/90. ROUND 150mm /6 inch Circular end is a 150mm round male spigot that that fits inside 150mm round duct pipe Part: DUCVKC670 or flexible hose Part: DUCP0092/152/35. 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 (Pa): 60 l/s = 1.7 Pa 120 l/s = 5.4 Pa 180 l/s = 10.8 PaPerfectly 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: 220mm x 90 Fits over rectangular duct pipe. - ROUND END: 150mm (6 inch) Fits inside round pipe of flexible hose. - Allows you to convert between round and rectangular ducting systems. - Kair short rectangular to round connector is perfect for installs where space is limited. - Compatible with the extensive range of Kair plastic ducting fittings, outlets, and grilles ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07G2BLP5X | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 9,841 in DIY & Tools ( See Top 100 in DIY & Tools ) 19 in Ducting | | Customer Reviews | 4.6 4.6 out of 5 stars (879) | | Date First Available | 31 July 2018 | | Guaranteed software updates until | unknown | | Item Package Quantity | 1 | | Item Weight | 300 g | | Manufacturer | Kair | | Manufacturer reference | DUCVKC5713 | | Package Dimensions | 29.1 x 28.5 x 15.7 cm; 300 g | | Part Number | DUCVKC5713 | | Size | 220mm x 90mm to 150mm | ## Images ![Kair 220 x 90mm to 150mm Rectangular-to-Round Duct Adaptor - Image 1](https://m.media-amazon.com/images/I/41oZGLSph6L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Will this be compatible with elica flat ducting which is 222mm x 89mm** A: No , needs to be round 6" **Q: does this fit on to most portable air con units please** A: No, you would need to check the size of the hose - this one is 100mm in diameter some are 125mm depending on the manufacturer **Q: Would this vent an ac units hose through a letterbox? Thanks.** A: Yes it will but you will need another adaptor which Amazon had on a buy both option.This slim adaptor is a god send and were using it as I write . **Q: Will this fit a 6ich tube** A: Hello If you look on the sizes . It says 100mm diameter. Which is approximately only 4" .so no it wont fit 6" ## 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? - 🛒 **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.com.br/products/72686694-kair-220-x-90mm-to-150mm-rectangular-to-round-duct](https://www.desertcart.com.br/products/72686694-kair-220-x-90mm-to-150mm-rectangular-to-round-duct) --- *Product available on Desertcart Brazil* *Store origin: BR* *Last updated: 2026-11-08*