Nutone 391 Replacement Bags for Central Vac, Set of 3 Six Gallon Bags

6 gallon bag2-ply electrostatically charged filter captures particles down to .10 microns

• Deep cleaning is no longer a chore with NuTones tight-seal vacuum bags. The bags capture and tightly seal dirt, dust and allergen particles away with reliable efficiency to make your home a cleaner, healthier place for your family to live.
• 2-ply electro-statically charged filter media captures particles down to .10 micron at 85% efficiency, ensuring a clean and healthy environment for your family
• Suggested replacement about twice a year allows for maximum performance and efficiency.