Reducing Coupler Fitting Side A Connection Type Barbed Fitting Side B Connection Type Barbed Fitting Side A Tube Inner Diameter 3/8 in Fitting Side B Tube Inner Diameter 1/4 in Barb Style Single Barb Fitting Material Nylon Material Grade 6.6 Specific Fitting Shape Straight Reducing Connector Application Air Non-Potable Water Maximum Operating Pressure 150 psi @ 70 Degrees F Maximum Operating Temperature 275 Degrees F Standards RoHS Color Black