Exit filter size: 116*116*22mm It is usually can be used together with FJK6621.230 as a suit . Exit filter can be used at the top or bottom of room or cabinet in order to clear the air .It can be used together with FJK6621.230 together as a suit .The filter pad in it can prevent dust particles of which the dia is more than 10 microns .Protection Class is IP54 (EN60529)Installed with N8 ...