Drive Devilbiss 1025DS Cabinet Filters, 6 Pack Drive DeVilbiss® 10-Liter Oxygen Concentrator Model 1025 5-5/8 Inch X 3-5/8 Inch X 5/8 Inch Intake Filter for DeVilbiss Oxygen Concentrators & iFill System Filter is white filter in plastic casing located inside the cabinet; looks like an air filter Replace every 8,760 hours per manufacturer Sold 6/Pack
