Weld On Filler Neck & Cap with Roll Over Valve. Aeroflow’s billet alloy weld on filler cap with roll over valve is specifically designed to be welded onto any alloy tank and the built-in valve acts as a vent. In case of a roll over, it will also work as a roll over valve and stop any fluid from leaking out. These caps are manufactured from 6061-T6 aluminum and are supplied with a in blue, red, black, gold, purple, raw, polished and silver anodized finishes.
* With Rollover Valve Cap
• Bore Size: 50.8mm (2")
• Height: 35.5mm (1-25/64")