Maximize your truck’s storage capacity without sacrificing bed space with the Brute Toolbox RB178-9 Low Profile LoSider. This 56-inch commercial-class side rail box is engineered for professionals who demand durability, security, and easy access to their tools. Its low-profile design ensures minimal obstruction to your rear view, while the rugged, textured black powder coat finish provides superior protection against scratches, corrosion, and the elements.
Built from heavy-duty .063″ aluminum diamond tread plate, the RB178-9 is designed to withstand the toughest job sites. The reinforced, beveled lid adds strength and prevents water from pooling, working in tandem with the automotive-grade rubber weather seal to keep your equipment dry and secure. Installation is a breeze with the included J-hooks, which mount the box securely to your truck’s side rails without any drilling required.
- Commercial Grade Construction: Made from robust .063″ aluminum diamond tread for maximum strength and longevity.
- Low-Profile Design: Sits low on the truck bed rails for a sleek look and clear rear visibility.
- Weatherproof Seal: A full rubber weather seal protects contents from moisture, dust, and dirt.
- Reinforced Beveled Lid: Provides extra rigidity and improved weather resistance.
- No-Drill Installation: Patented J-hook mounting system allows for quick, easy, and secure installation without drilling into your truck.
- Organized Storage: Features an adjustable tray and additional front storage space to keep your tools organized and accessible.
- Durable Finish: Coated in a tough, textured black powder coat for a lasting, professional appearance.
As a leader in professional-grade storage, every product from Brute Toolbox is built to last. Explore our full collection of Topsider Tool Boxes to find the perfect solution for your work truck.





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