Prevents dust and debris from entering your grow area through your ducts
The duct filter is designed for initial filtration of flowing air in round duct systems, which prevents any debris such as dust, bug eggs and bugs from entering your grow tent or grow room via the ducts.
Filtering element is a EU4 class inset secured with a galvanized net.
The cover is made from galvanized steel with gaskets on both ends.
Quick assembly and secures easily.