Fitting is industry standard 37 degree AN and ORB using a O-ring for a superior seal on the port side.
Fitting has been radiused on the O-ring side for better flow so the anodize is machined off on that part.
Fitting will include an O-ring.
Note: This is a used item. This item might have been taken in on a trade. RBS may have inspected this item and deemed re-usable. There is no warranty expressed or implied with this item.