Aeroquip FCM2055 Blue Anodized Aluminum -12AN Flare Union Adapter Expertly designed and manufactured for exceptionally high quality Straight style is excellent for connecting plumbing that requires little or no bend in the line Adapter is -12 on one side, and -12 on the other Manufactured from high-quality blue anodized aluminum to be durable and lighter in weight 1 year limited manufacturer's warranty