NuTone 391 - 6 Gallon Replacement Bags for Central Cleaning Vacuum System - 3pcs.
- Two ply electrostatically charged filter media captures particles down to .10 micron at 85% efficiency
- Six gallon bags-for use with CV350, CV352, CV353, CV450, CV653 and CV750
- Set of 3 bags
- Suggested replacement about twice a year