The EF-3 is used on 6820 and 6830 Series Canisters and Powerteams. For model 6820 6833 6830 item no. 62040 Change your filter every 6 months for optimum performance. This pack has 2 filters. Availability: Usually ships in 2-3 business days sd98Regular price: $7.99Sale price: $7.50 Vacuum Cleaner Bags | Vacuum Cleaner Belts | Vacuum Cleaner Filters | Vacuum Parts | Store Info vacuums valley 22054 shaw road sterling ,VA 20164 www.buydirtbags.com . All rights reserved Best total price LOW GROUND SHIPPING USA vacuum cleaner bags, vacuum cleaner belts, vacuum filters, HEPA filters and all other vacuum cleaner parts. Most orders are processed within 24 hours. We do not charge your order untill we ship it. We ship via USPS Priority Mail or UPS Ground.