Made for heavy duty with extra groove for o-ring Fitting -10 AN / Dash 10 ORB to -12 AN / Dash 12 Highest quality with o-ring Made for heavy duty with extra groove for o-ring These fittings are specially designed for our products. If you wish to change, or complement the use of fittings of the highest quality, we recommend that you use our fittings which are designed to withstand high power and excessive wear. Available in several sizes and varieties. Thread size A: -10 AN / Dash 10 / 7/8x14" ORB male Thread size B: -12 AN / Dash 12 male Material: Aluminium Color: Silver anodized When used with our fuel rails, we recommend our banjo fittings to complement those it shipped with.