Designed for Oreck models: XL PRO14, UPRO14T, UPRO18 and UP350 It also fits Multistar® MSPRO18U Commercial Upright vacuum Vacuum bags can hold up over 4 quarts of dirt and debris This is exact same bag as bissell B-203-7744 Both are produced by Edmar and Oreck sometimes subs this Bissell for Oreck Similar to PF14/PF18 bags Package contains 10 bags