Better Built 48 in. x 18 in. x 20 in. Single-Lid Truck Tool Chest at Tractor Supply Co.
Heavy Duty Aluminum Toolboxes for Pickup Truck: High side truck tool box, Low side box, Low profile tool boxes, Saddle truck tool box, and 5th Wheel tool boxes, we make it all.
UWS Gloss Black Aluminum 48" Utility Chest Box (Heavy Packaging) TBC-48-BLK - The Home Depot