Kair 110 mm x 54 mm Rectangular to Round (100 mm Male Spigot) 90 Degree Bend - SYS-100 - DUCVKC237 by Kair

• RECTANGULAR END: 110mm x 54mm Fits over rectangular duct pipe.
• ROUND END: 100mm (4 inch) Fits inside round duct pipe.
• 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.

Kair Elbow Adapter 110mm x 54mm to 100mm - Rectangular to Round 90 Degree Bent Adapter - Male Rectangular 110mm x 54mm The flat end is a female spigot and fits over 110mm x 54mm rectangle pipe part: DUCVKC249 Round 100mm round end is a 100mm round connector fitting that fits into 100mm round duct pipe. Part: DUCVKC250 Allows you to convert round and rectangular ducting systems. Made in the UK from high quality polystyrene/polypropylene Max. Min. Temperature: +60°C / -15°C. Easy to install and durable, just clip the air duct and fittings together. For permanent fixings, seal joints with silicone sealant or tape. Air flow performance independently tested by BSRIA or BRE. Suitable for use in accordance with Part F building codes. Static pressure drop in Pascals: 15 l/s = 8.10 Pa - 30 l/s = 33.10 Pa - 60 l/s = 136.40 Pa. Perfect for extractor fans in bathroom or kitchen, hydroponics, in-line extractor fans, tumble dryers or cooker hood. This item can be used as part of a long line run for a variety of purposes including whole house ventilation, passive stack fan, positive input ventilation, air conditioning, HVAC and heat recovery systems. Kair plastic duct is ideal for DIY and crafts and provides excellent airflow performance and durability compared to flexible ducts.