UFI-W is a class EU4 filter element designed for filtering air
flowing through round ducts. It is protected with a 1 mm
wire mesh of galvanized steel on both sides. The mesh size
is 1x1 mm on one side and 10x10 mm on the other.
The filter element casing is a 20 mm tall round duct piece.
The UFI-W filter elements are replaceable components of UFI duct filters.