146-5137, Legris, Legris LF3000 Series Reducer Nipple, Push In 6 mm to Push In 4 mm, Tube-to-Tube Connection Style, Brand Legris, Pneumatic Fitting Type Reducer Nipple Legris LF3000 Series Reducer Nipple, Push In 6 mm to Push In 4 mm, Tube-to-Tube Connection Style