The 40 x 48 Uni-Pak® pallet pack lid is a twin-sheet, thermo-formed, industrial solution designed for use with the 40 x 48 Uni-Pak® pallet pack container system. It’s light-weight and durable for long term usage in high-volume applications. Can be combined with tri-wall corrugated sleeve for complete container. Sleeves available in 30", 45" w/o drop, or 45" w/drop panel. Black color.