The 220mm x 90mm flat channel connector is manufactured from high impact polystyrene and has a minimum free area of 18545mm2.

It has female connections on either side for connecting to 220mm x 90mm rigid ducting.

The high flow 220mm x 90mm ducting offers increased free area to accommodate larger airflow whilst ensuring ceiling installation space is kept to a minimum. 

Suitable for Mechanical ventilation heat recover systems, kitchen extraction and where high air flows are required.