1 micro hygeine vacuum cleaner filter.MICRO FILTER replacement type but excellent quality off the market item ,will replace OEM Part Number: 5301 ER. Fits Models: SENSOR MODEL SR 12 SR15 SR17, 0.3 micron filtration, change when discolored. Availability: Usually ships in 2-3 business days CD21Regular price: $24.99Sale price: $19.99 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.