The "ULTRA" Metal Mesh is constructed with expanded aluminum metal
mesh with a standard channel width of 7/16". The "ULTRA" MM has
many uses: to be used in ceiling vent fans, computer environment
systems, air exhaust, recirculating systems and range hood fans.
Doubles as an attenuator. For sensitive electronic equipment, the
filters can provide protection from electromagnetic and radio
frequency interference as well as from airborne contaminants. The
filtering media doubles as an EMI/RFI attenuator and air cleaner.
EZ to clean. Spray each side with a degreaser and rinse. UL Class 2