https://docs.paloaltonetworks.com/hardware/pa-5200-hardware-reference/service-the-pa-5200-series-firewall/replace-the-air-intake-filters-on-a-pa-5200-series-firewall
Replace the Air Intake Filters on a PA-5200 Series Firewall
Learn how to replace the air intake filters on a PA-5200 Series firewall.
air intake filtersreplace