For best airflow, it is recommended to keep the flexible duct tight, as short as possible, avoid sharp turns and keep the duct as round in shape (do not squash it) as much as possible.
Choose the duct size to suit the exhaust fan and for best airflow, use same size or bigger duct than required by the fan.
Logan Design Studio –
Works well in the ensuite
Mark Littlefield –
Barry Thygesen –
easy to use and weave around rafters
Auslec Geraldton –
Good product and worth quoting in the future
Kirk Anson –
Great product, we look forward to many years of trouble free use.
Spa Country P/L –
Professional to deal with