Made in USA - 1 Compartment, 12" Wide x 15" Deep, File Storage Boxes - 39504840 - MSC Industrial Supply
Amazon.com: Aviditi File Storage Boxes, 24" x 12" x 10" with Lid, Preprinted Panel for Content Identification, Tape Free Assembly and Easy to Carry Handles, for Letter Size Files, Pack of 12 :
SYSTEMATIC Basic-Duty Attached Lid Storage Boxes, Letter/Legal Files, Kraft/Green, 12/Carton - Reliable Paper
Recycled Heavy-Duty Record Storage Box, Letter Files, Kraft/Green, 12/Carton - Western Stationers