Male Adapter Fitting Side A Connection Type Barbed Fitting Side B Connection Type MNPT Fitting Side B Pipe Size 1/4 in Fitting Side A Tube Inner Diameter 1/4 in Barb Style Standard Fitting Material Brass Material Grade C27450 Overall Length 1 23/32 in Specific Fitting Shape Straight Adapter Application Air Maximum Operating Pressure 150 psi Maximum Operating Temperature 160 Degrees F Standards NSF Lead Content Program Hex Size 9/16 in Minimum Operating Temperature 40 Degrees F