MettleAir MTMF 3/8-N02-1PK Push to Connect Straight Bulkhead Female Fitting, 3/8" OD, 1/4" NPT Type: Straight Bulkhead Female Connector Model: MTMF 3/8-N02 Tubing: 3/8" OD Thread: 1/4" NPT Body Material: Composite/Nickel Plated Brass