Keystone Electronics Corp. 4.50" (120mm) Fan Guard Assembly 8489

The 8489 fan guard and filter assembly is designed for 4.50-inch (120mm) fans and includes a snap-fit retainer, glass-filled nylon 6/6 guard and retainer with UL 94V-HB rating, and polyester foam and aluminum mesh filter media offering 24 CFM airflow with minimal pressure drop. It features four countersunk mounting holes with 4.130-inch (105.0mm) center spacing, a width of 4.961 inches (126.0mm), and a thickness of 0.496 inch (12.6mm). The assembly enables easy media replacement without disturbing the fan or guard.