Blue Anodized Aluminum Adapter, -12 Male SAE O-Ring Boss (Straight Thread O-Ring) To -12 Male JIC 37 deg Flare, Straight

Equal dash sizing on both ends means the flow path stays consistent all the way through. The -12 to -12 configuration doesn't step down anywhere, so you're not introducing a restriction at the connection point. The straight body keeps everything in line without any offset, which makes routing cleaner in tighter assemblies.

For a straight adapter that goes from -12 male SAE O-ring boss to -12 male JIC 37 degree flare, that is exactly what this fitting is. Both ends are the same dash size so it keeps the line sizing consistent through the connection.

This adapter doesn't have a directional requirement. The -12 Male SAE O-Ring Boss end is designed to connect to a corresponding SAE O-Ring Boss port, while the -12 Male JIC 37 deg Flare end connects to a JIC 37° flare fitting. As long as the mating connections are correct, the adapter will function as intended.