18x12x6 Single Box (200 ect)

External Dimensions: 18 3/8 x 12 3/8 x 6 5/8" (+/- 1/8")

FEATURES: Sealed seams. Vs. 32 ECT (Edge Crush Test). 200# offers 60% greater pressure resistance than 32 ECT - recommended for shipments up to 40 lbs..