RKI US48AB 48" Aluminum Upper Side Box Single Door Black

The RKI US48AB is a 48-inch aluminum upper side box designed for truck bed organization and secure storage. This single-door model features a durable black powder-coated finish that resists corrosion and provides a professional appearance on any work truck.

Key Features:

• 48-inch width provides ample storage capacity for tools and equipment
• Lightweight aluminum construction won't rust or corrode
• Single door design with secure locking mechanism
• Black powder-coated finish protects against weather and scratches
• Upper side mount design maximizes truck bed space
• Weather-resistant seals keep contents dry and protected

RKI upper side boxes are engineered to provide professional-grade storage solutions for contractors, fleet operators, and truck owners who demand durability and reliability. The aluminum construction keeps weight to a minimum while maintaining structural integrity for years of service.