The TrailFX (R) Steel liquid transfer tank is designed to be used with full size trucks. This sturdy one piece design allows you to get the greatest storage capacity. Lockable vent caps help to eliminate tampering, and heavy duty lifting loops make installation easy. Product Features:Designed To Carry Diesel Non Potable Water, Or Other Non Flammable Liquids SafelyConstructed From Heavy Duty Diamond Plate AluminumIncludes Lockable Cap (Must Purchase Pad Lock Separately) To Secure Transported LiquidsMounting Tabs Included When Necessary For Permanent Mounting (Hardware Not Included)Drain Plug Included To Assist With Dispersement Of LiquidsLimited Lifetime Warranty