Size:the thread size of 12AN is 1 1/16-12 UNF,the thread size of 12AN ORB is 1 1/16-12 UNF. Material: The 12AN to 12AN orb reducer is made of aluminum alloy 6061-T6 which is anodized black surface,and the O-ring is made of NBR rubber.
Aluminium AN12 12AN Flare to 12 ORB O Ring Boss Adapter Fitting
ORB O-ring AN10 10AN to AN12 12AN Male Adapter Fitting Black Pack of 2
AN12 12AN Male Flare to AN16 16AN Male ORB Straight Adapter Fitting with O-Ring
AN8 8AN Male Flare to AN12 12AN Male ORB Straight Adapter Fitting with O-Ring
AN12 12AN Male Flare to AN8 8AN Male ORB Straight Adapter Fitting with O-Ring
1x -8AN Black Flare to 8 ORB ORing Boss Adapter AN Fitting ORB 8 ORB.