PG 3/8-5/16 | 3/8 to 5/16 O.D Tube, Union Straight Reducer | Push in Fitting

3/8 to 5/16 O.D Tube, Union Straight Reducer | Push in Fitting

PG 3/8-5/16 is kind of union straight reducer push in fittings with a 3/8" O.D tube and a reduced size 5/16" O.D tube, used to connect tubing of different sizes.