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Compare to Uline S-4821 and $ave!
Stock #: BX-201604
EAN: 0631546036088
Our 20" x 16" x 4" 200 LB. TEST Flat shipping boxes feature a durable, corrugated construction that protects and conceals shipments to help ensure safe arrival. These shipping boxes meet requirements for 200#/ECT-32 kraft C-flute single wall corrugate. Great for packaging framed posters, artwork, large books and flat or round items.