9 MD Modern Day Anti-Allergen 12-Gallon Vacuum Cleaner Bags 721H

Each manufacture package includes 3 MicroFine Electrostatic lined Allergen Vacuum Bags made by EnviroCare Part #MD814L

Envirocare Parts designed to fit with or replace genuine original (OEM) manufacture part numbers #721, Replaces older #721-5 & 721H.

This bag fits over the blue cloth support. The bag was designed to be big so there would be more area to filter the air. After inserting the bag, open it up inside the vacuum by pushing down and out from the sides.

Designed to fit Modern Day (MD) and other Central Vacuum Systems models listed below and more:MD (Modern Day) E, E2, QE2, E3, QE3, G23, SV, and SVTSilent Master S1, S2, S3, S4, S44, S5, SP2, SP22, and SP3Air Force open bag units over 34 inches in total lengthAirFlow CFM open bag units over 34 inches in total lengthStor-Vac open bag units over 34 inches in total length