MettleAir MTE 5/16-1/4 Push to Connect Tee T Reducer Union Fitting, 5/16" OD - 1/4" OD (Pack of 10) Type: Tee Reducer Union Model: MTE 5/16-1/4 Tubing Center: 1/4" OD Tubing Right: 5/16" OD Tubing Left: 5/16" OD