cowls will automatically reduce unwanted heat, odour, and dust transfer, as
well as inhibiting insect entry through almost all common ceiling exhaust fans.
is adaptable to most ceiling mounted "3-in-1 Heater/Exhaust
Fan/Light units" that discharge air directly into a roof cavity.
AUD Postage and handling extra
NB: The 'Draft
NOT SUITABLE for fan units that vent directly to the exterior atmosphere
(e.g. via a shaft, duct or flue).