IRIS Stackable Plastic Legal File Storage Box for Letter (3-Pack) 500143 - The Home Depot
Hang'N'Stor™ Bankers Box® - 15 3/4 x 12 3/8 x 10" S-18302 - Uline
Amazon.com: Akro-Mils 12 Gallon KeepBox File Box Plastic Stackable Storage Container with Hinged Attached Lid and Rails for Hanging File Folders, 21-Inch L x 15-Inch W x 12-Inch H, Clear/Blue : Everything
Black Leather Hanging File Folder Box | Michaels
Clear Stackable File Tote Boxes | The Container Store
Pendaflex SureHook Hanging Box File, Letter Size, Reinforced 3" Expansion, Blue - ForMyDesk.com