Back to Training HVAC 101 0% Complete 0/0 Steps Remove Locking Refrigerant Caps 5 Inch Media Filter Replacement Ladders, Drops & Attic Access Heating Sequence Of Operation - Standard Furnace Duct Inspection Drawing A System Finding Signs Of Rats In The Attic Space Insulation Check Dampers Explained HVAC 101 5 Inch Media Filter Replacement Video 2 of 9 In Progress ← Previous Next→ 5 Inch Media Filter Replacement Mike goes over a simple replacement of the 4 & 5 inch media filters.