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.
