Guardair / Nortech 55 & 30 Gallon Standard Cartridge Filter
Our most popular filter, the Standard Cartridge Filter is ideal for most industrial and commercial cleaning applications. Operates at a minimum of 98% efficiency for particles up to 10 microns. For finer filtration capability, substitute Guardair's HEPA or ULPA filters. For use with all 55, 30 and 20 Gallon Guardair Drum Vacuums and Vacuum Generating Heads.

• Features
• Pleated paper filter
• Galvanized carbon steel cage
• Minimum filtration: 10 microns @ 98% efficiency
• Minimum flow rating: 410 cfm @ 0.5" H2O
• Medial velocity: 20 cfm
• Dimensions : 12.3" x 10.5" x 10.5"