Rigid 45-degree bends can be used to run your ductwork around obstacles along walls and into ceilings and offer superior performance and durability over flexible alternatives.
This item is part of the Kair Ventilation System 100 Plastic Round Ducting Range (SYS-100). The Kair Round System 100 (SYS-100) ducting provides superior airflow performance compared to rectangular or flexible duct and should always be considered as a first option if space allows. This system is suitable for extractor fans and cooker hoods and is compatible with an extensive range of fittings outlets and grilles.
Kair plastic ducting is lightweight, durable and suitable for commercial and domestic use. It is perfectly suited for ducting your tumble dryer, bathroom or kitchen extractor fan, hydroponics, in-line extract fans, or a cooker hood. It 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, air conditioning, HVAC, and heat recovery systems.
If your duct run passes through a particularly cold area, we would recommend considering using our pre-insulated ducting to avoid condensation building up within your ductwork. Click here to view our range of pre-insulated plastic ducting.
Here at i-sells.co.uk, we stock a large range of galvanised products including 90 degree and 45-degree bends. We recommend our 'safe seal' galvanised bends, which are available in a huge variety of sizes from 63mm up to 1600mm.
Click here to view our full range of galvanised safe-seal bends.
Looking for compatible products?
Compatible with the extensive Kair SYS-100 range of fittings, outlets, and grilles.
|Round System (mm)||100|
|Product Group||Plastic Ducting|
|Spigot size (mm)||99|
|Packaged Weight (Kg)||0.052|
|Packaged Length (mm)||100|
|Packaged Width (mm)||100|
|Packaged Height (mm)||130|
|Temp Max (°C)||60|
|Temp Min (°C)||-15|
|Vent Axia (similar)||372005|
|Polypipe / Domus (similar)||491|
|Pressure Loss (Pa) 15 l/s||2.1|
|Pressure Loss (Pa) 30 l/s||8.2|
|Pressure Loss (Pa) 60 l/s||31.4|
Your question will be sent to a member of our team. We'll email you the answer and post it on this page. If your question is about an order you already placed, please use our Contact Form to reach the customer service team.
|Customers who bought this product also purchased|
|Ducting System||Actual dimensions (mm)||Space requirements (mm)||Airflow mm²|
For 4" (100mm) extractor fans or for low power cooker hoods up to 250m³/hour
|System 100 - Round||100||106||7,854|
|System 100 - Rectangular||110 x 54||116 x 60||5,940|
For medium extraction rates or if available depth is limited up to 500m³/hour
|System 125 - Round||125||131||12,272|
|System 125 - Rectangular||150 x 70||156 x 76||10,500|
For 6" (150mm) extractor fans or for high power cooker hoods up to 500m³/hour & above
|Megaduct 220 - Rectangular||220 x 90||227 x 97||17,968|
|System 204 - Rectangular||204 x 60||210 x 66||12,240|
|System 150 - Round||150||156||17,671|
|System 150 - Rectangular||180 x 90||186 x 96||16,200|
For a shallow space, such as ceiling voids or under floor, where high extraction rates are not needed:
|System 300 - Rectangular||308 x 29||314 x 35||8,932|
|System 225 - Rectangular||234 x 29||240 x 35||6,786|
| System 100 |
| System 125|
| System 150|
|System 204||System 225|
|System 220||System 300|
|Actual Dimensions (mm) Space Requirements (mm)|