ProTech Underbody/Top Mount Box 18X18X48 R/H Double Smooth Barn Door Style Bright Aluminum Model 20-2275R 39 Gallon #48601 or #48660 or CURT

#48601 or #48660 or CURT channel-style couplers #25319

and they are commonly used on trucks

The 1705205 Buyers Underbody Box is one of the best underbody truck boxes for your money

Length: 60 1/2 " Overall Length: 71 1/4 " Mount Height: 18 1/2 " Overall Depth: 25 11/16 " Width: 20 " Standard Tray: ST Material: Steel Number of Lids: 1 Approximate Weight: 205 lbs

No drill required

ProTech Underbody/Top Mount Box 18X18X48 R/H Double Smooth Barn Door Style Bright Aluminum Model 20-2275R 39 Gallon #48601 or #48660 or CURTProTech Underbody Top Mount Box 18X18X48 R H Double Smooth Barn Door Style Bright Aluminum Model 20 2275R ProTech Underbody Top Mount Boxes Secure, Weather Resistant, and Built to Last. ProTech Storage Boxes are engineered to provide unparalleled security and weather resistance. Designed for mounting on top of flat surfaces, these rugged boxes are as tough as the job demands. Dimensions: 18in H x 18in D x 48in L Secure storage to protect your tools