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Replaces OEM part numbers: 7FJ9-5003
Description
Genuine Airflow Systems 7FJ9-5003 DOP filter: 95% DOP, 18" x 24" x 4" nominal. The 7FJ9-5003 is the 95% DOP after-filter for the Airflow Systems PCH-2 portable collector and the Mini-Pac portable air cleaner: one per unit on units built with the DOP option, fitted after the main filter. It is the same 18 x 24 x 4 size as the 99.97% HEPA (7FJ9-9003, SKU 51023), so check which after-filter your unit has before you order. Specifications: • Part number: 7FJ9-5003 • Size: 18 x 24 x 4 in. nominal • Efficiency: 95% DOP • Stage: after-filter (final filter) Fits: • Airflow Systems PCH-2 (1 per unit, DOP option) • Airflow Systems Mini-Pac (1 per unit, DOP option) Keep the filters ahead of it changed on schedule, and replace it when your gauge reaches the change point. In-stock orders placed by noon CT ship the same business day. Not sure it's the right one? Measure your old filter (width, height, depth) or send us its part number or a photo through the chat button, and we'll confirm the match before you order. 30-day returns.
Specifications
Download spec sheet (PDF)Dimensions Dimensions The filter's size in inches (for media rolls, the length is in feet). Panel and bag filter sizes are nominal, so the actual filter can measure slightly smaller. | 18 x 24 in. face, 4 in. deep |
Substitute For Substitute For Identifies alternative or equivalent part numbers that this filter can replace in compatible systems. | 7FJ9-5003 |
Media Type Media Type The material or composition of the filter media, which determines filtration efficiency, durability, and application suitability. | DOP |
Filter Stage Filter Stage Where the filter sits in your collector: a pre-filter catches larger particles first, the main filter does most of the filtering, and an after-filter is the final stage. | After |
Filter Efficiency (%) Filter Efficiency (%) The percentage of particles a filter can capture from the air, indicating how effective the filter is at removing contaminants. | 95 |
Temperature Rating (°F) Temperature Rating (°F) The maximum operating temperature the filter can safely withstand without degrading performance or structural integrity. | 200 |




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