100mm Gravity White Grill
The gravity louvered vent is designed to allow air to be vented to the atmosphere
while stopping outside air and pests entering the system when not in use.
Manufacturers Website - http://allvent.com.au/index.php?option=com_content&view=article&id=69&Itemid=114
AUD$38.50
AUD$59.40
AUD$36.30