New Philadelphia Racing Products fuel cell/intercooler tank filler cap kit.  Cap and flange is billet aluminum, anodized red.  Flange has o-ring seal underneath, and attaches with 6-bolts.  Flange is approx. 5" width, the cap is a screw on cap, approx. 4" in width.  Excellent accent item to your custom fabricated fuel cell or intercooler water tank.