UWS transfer tanks offer the perfect solution for transporting chemicals, solutions and other non-flammable liquids to your next jobsite. Each tank features corrosion-resistant aluminum construction, a commercial-grade ventilation cap and an optimal fit and capacity to suit your truck and lifestyle. The heavy-duty aluminum alloy construction provides the tank with structural strength, while keeping it lightweight and resilient to corrosion. The commercial-grade vented cap allows for proper ventilation of the liquid contents, and the tank is also equipped with commercial-grade mounting flanges for maximum strength in the truck bed. UWS transfer tanks are available in multiple sizes to accommodate any job. Like all UWS truck tool boxes, this product is proudly assembled right here in the USA for style and long-lasting dependability. This tank is DOT-compliant for transporting Class 3 combustible fuels only, such as diesel.