MettleAir MTC 3/16-N01 Push to Connect Straight Male Fitting, 3/16" OD, 1/8" NPT Thread (Pack of 10) Type: Straight Male Connector Model: MTC 3/16-N01 Tubing: 3/16" OD Thread: 1/8" NPT Body Material: Composite/Nickel Plated Brass