6AN -6 ORB Male to 8AN -8 ORB Male Swivel Union Fitting Adapter Coupler Aluminum
Size: AN6 (9/16x18 UNF) to AN8 (3/4x16 UNF) ORB male to male swivel union coupler. These special aluminum ORB unions are designed to connect two female O-ring ports together; 360° full swivel head allows for easy installation and removal.