20RG Steel Utility Boxes are Heavy Duty, High Capacity, Built Tough with Drop Open, Single Door, T-Handle Locking System and Powder Coated Finish and offer easy access from side of your Truck or Trailer. This Box can be mounted on Top of Bed Rails and Flatbeds, or any Contractor's Professional Service Vehicle. Use this Box to make your pickup into a Service Vehicle without spending high dollars on Utility Service Bodies. This Boxes feature a fully Concealed Rain Gutter and Bulb-Type Automotive Sealing Door Gasket.
For Truck Bed Top Mount Mounting Kit purchase: M3200D.
Installation Instructions: http://www.protoolboxes.com/images/PDF/ISL1060.pdf
Description Sheet: http://www.protoolboxes.com/images/PDF/DST1060-9.pdf