5/16″ Flared Swivel Hex Nut

This 5/16″ flared swivel hex nut fits:

• 5/16″ flared barbs for attaching tubing
• 1/4″ male flare fittings (MFL) on ball lock threaded quick disconnects
• 1/4″ male flare fittings (MFL) on aeration stones
• any 1/4″ male flare fitting

Note: The difference between the 5/16″ and 1/4″ flared swivel nuts is the size of the opening for the barbs to go through. The MFL is 1/4″ on both and will attach the same.

Looking for the 1/4″ version? It can be found here.