Cool Components Grill - 4x5 Openings - Plastic (White) The perfect piece for passive cooling, this grill increases natural airflow and provides just the right amount of cooling to keep components operating safely. Put it in a door or cabinet to get extra circulation for installs where a full fan isn’t necessary. Easy & Economical This ABS plastic vent can be added to a cabinet, door or other area to provide effective passive cooling for AV components. Simple Install Installing this grill in a cabinet is fast and easy. Simply cut a 4”W x 3.5”H opening, then use the grill as a template to mark the screw holes, pre-drill the holes, and attach using the supplied screws. Package Includes 4"x5" Vent Mounting Screws