MettleAir MTC 1/4-N04 Push to Connect Straight Male Fitting, 1/4" OD, 1/2" NPT Thread (Pack of 10) Type: Straight Male Connector Model: MTC 1/4-N04 Tubing: 1/4" OD Thread: 1/2" NPT Body Material: Composite/Nickel Plated Brass