---
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: "¥4121"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/70669884-kair-elbow-bend-adaptor-110mm-x-54mm-to-100mm-4
store_origin: JP
region: Japan
---

# 110mm x 54mm Converts to 100mm Compatible with Kair range 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:** ¥4121
**Availability:** ✅ In Stock

## Summary

> 🔧 Transform Your Ducting Game!

## 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?** ¥4121 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-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

- • **Sleek Aesthetic:** Classic white finish blends seamlessly into any installation.
- • **Seamless Transition:** Easily convert between rectangular and round ducting systems.
- • **Space-Saving Design:** Perfect for tight spaces with its 90-degree bend.
- • **Lightweight & Durable:** Weighs only 0.18 lbs, made from robust polypropylene.
- • **Versatile Compatibility:** Works with a variety of Kair fittings, outlets, and grilles.

## Overview

The KairElbow Bend Adaptor is a versatile 90-degree connector designed to convert between 110mm x 54mm rectangular and 100mm round ducting systems. Made from durable polypropylene, this lightweight adapter is perfect for installations in tight spaces and is compatible with the Kair range of fittings, outlets, and grilles.

## 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 |
|---------------|-------|
| Manufacturer | Kair |
| Part Number | DUCVKC236 |
| Product Dimensions | 14.3 x 11.61 x 6.91 cm; 81.65 g |
| Manufacturer reference | DUCVKC236 |
| Size | 110mm x 54mm to 100mm (Female) |
| Colour | White |
| Material | Polypropylene |
| Item Package Quantity | 1 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 81.6 g |

## Product Details

- **Size:** 110mm x 54mm to 100mm (Female)
- **Material:** Polypropylene
- **Brand:** Kair
- **Colour:** White
- **Item dimensions L x W x H:** 14.3 x 11.6 x 6.9 centimetres
- **Connector type:** Adapter
- **Thread size:** 100mm
- **Thread type:** BSP
- **Item weight:** 82 g
- **Manufacturer:** Kair

## 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 name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by O***E on 28 June 2025*

Good quality. Saw someone else use this as a port for their portable air con out the window so did the same. Connected with pvc tape and works a treat

### ⭐⭐⭐⭐⭐ Good fitting for my Air conditioning exhaust pipe
*by A***R on 13 July 2025*

Quite bulky but just what I needed

### ⭐⭐⭐⭐ Did the job
*by S***Y on 27 August 2021*

Used as part of a tricky static installation of an aircon. It did the job, although 'the job' involved a lot of ingenuity, foamed neoprene sheet, neoprene glue and ingenuity.

## 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

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**Shop now:** [https://www.desertcart.jp/products/70669884-kair-elbow-bend-adaptor-110mm-x-54mm-to-100mm-4](https://www.desertcart.jp/products/70669884-kair-elbow-bend-adaptor-110mm-x-54mm-to-100mm-4)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-22*