Eaton Weatherhead C5205X4X4 Carbon Steel SAE 37 Degree (JIC) Flare-Twin Fitting, Adapter, 1/4" NPT Male x 1/4" JIC Male Adapter fitting for joining a pipe to a tube in a range of fluid transfer applications 1/4" male NPT threads on one end and 7/16-20 male JIC threads on the other for use with 1/4" OD tubes Zinc-plated 12L14 carbon steel for strength, durability, and resistance to corrosion Operating temperature range of -65 to +400 degrees F (-53 to +204 degrees C) Meets SAE 070102 specifications for tube fittings