RKI US78CB 78" Steel Upper Side Tool Box Two Door Black

The RKI US78CB is a professional-grade 78-inch upper side tool box designed to mount on top of truck bed side rails or any flat surface application. Constructed from heavy-duty 14-gauge cold rolled steel with full arc welds, this two-door design provides secure, organized storage for commercial vehicles, service bodies, and pickup trucks.

Key Features:

• Five-stage metal pretreatment anticorrosion protection system with durable black polyester powder coat finish
• Three stainless steel pillow block hinges welded to the box with 5/16" hinge pins and self-lubricating bushings
• Full-size stainless steel paddle latch with drip rail over doors and channel drain
• Knife edge door design with ribbed d-bulb seal creating full perimeter weatherproof seal
• Heavy-duty machine chain holds doors horizontal; detachable to allow 180-degree opening
• Mounting hardware included for easy installation

Built by RKI in Houston, Texas, this toolbox is backed by their lifetime warranty and represents over 40 years of commercial-grade truck equipment manufacturing expertise. Perfect for contractors, service professionals, and fleet vehicles requiring reliable, weather-resistant tool storage.