JOHN GUEST 3/8 in. x 5/16 in. Push-to-Connect Reducer Fitting (10-Pack) PP061210W - The Home Depot
PP061208W RWC John Guest Polypropylene Reducer, 3/8" x 1/4"
15mm Stem OD x 3/8" Tube OD John Guest® Acetal Metric Stem to Tube Adapter | U.S. Plastic Corp.
John Guest Elbow Fitting 3/8"x1/4"
Stem Reducer | Polypropylene White | OD Tube Fittings | John Guest
John Guest Acetal Copolymer Tube Fitting, Reducer, 1/4" Tube OD x 3/8" Stem OD (Pack of 10): Push To Connect Tube Fittings: Amazon.com: Industrial & Scientific
Enlarger, 5/16 in. to 1/2 in. Sizes
PP061210W - John Guest PP061210W - 3/8" x 5/16" Reducer (Polypropylene)