| SPEEDAIRE 4GPD9 Element,Pre-Filter,5 Microns,15 CFM Pre-Filter Element, Filter Type Particulate, Filter Rating 5 micron, Filter Element Material Microglass, Compatible Grainger Part Number 35GN19, 35GN23, 4GNN5, 4GNW7, For Substance Type Air, Maximum Flow Rate 15 cfm, Series EF, Standards ISO 8573 ... more SPEEDAIRE 4GPD9 Element,Pre-Filter,5 Microns,15 CFM Pre-Filter Element, Filter Type Particulate, Filter Rating 5 micron, Filter Element Material Microglass, Compatible Grainger Part Number 35GN19, 35GN23, 4GNN5, 4GNW7, For Substance Type Air, Maximum Flow Rate 15 cfm, Series EF, Standards ISO 8573 | | $47.99 go to store |