Optional Upgraded Billet WMI tank cap with integrated safety check valve

The Burger Motorsports custom billet WMI cap includes an integrated heavy-duty check valve to let much-needed air in and prevent dangerous WMI vapor/fumes and liquid from getting out!  

Each cap is CNC machined in the USA from a solid block of billet aluminum, engraved with the BMS logo, and anodized blue for protection. 

Features and Benefits

• Integrated heavy-duty check valve lets air in but not out
• Specifically designed to prevent evaporation
• Keeps vapors inside the tank
• Made from a solid block of billet aluminum
• Blue anodizing for corrosion protection
• Exaggerated grips for easy removal
• Integrated heavy-duty o-ring 
• Made in the USA

Tank fitment
• BMS 1 and 1.25 gallon tank
• BMS 2 gallon universal tank
• BMS 2 & 3 gallon stealth tank