Vented Filler Cap with Check Valve and Aluminum Weld In Bung
Vented Aluminum filler cap with aluminum weld in bung. Stainless Steel ball inside of cap blocks the vent if vehicle flips to help prevent liquids escaping.
Thick wall weld in bung to prevent thread distortion after welding.
The cap is not designed to be used in rough environments such as boats or other vehicles that may cause fuel to splash out of the vent. Install and use at your own risk.