Stainless Steel Adapter, 1-1/16-12 Male JIC 37 deg Flare To 1-1/16-12 Male JIC 37 deg Flare, Straight

For a straight JIC-to-JIC connection, it matches 1-1/16-12 male JIC 37 degree flare on both ends, so it’s meant to join components that use that same JIC flare size.

For a 3/4 inch OD tube with 1-1/16-12 JIC 37 degree flare connections on both ends, yes, this union is exactly what you want. Both ends are male JIC 37 degree flare at that same thread size, so it bridges two matching female JIC fittings in a straight run. The body comes in at just over 2 inches long, so account for that when measuring your line.