Comparison : Item # 65V4H071, 1/4 Inch (in) Tube Outside Diameter (O.D.) VEE Stem 2-Way Straight High Pressure Needle Valve
Item # 65V4H081, 1/4 Inch (in) Tube Outside Diameter (O.D.) Regulating Stem 2-Way Straight High Pressure Needle Valve
Item # 65V6H071, 3/8 Inch (in) Tube Outside Diameter (O.D.) VEE Stem 2-Way Straight High Pressure Needle Valve
Item # 65V6H081, 3/8 Inch (in) Tube Outside Diameter (O.D.) Regulating Stem 2-Way Straight High Pressure Needle Valve
Item # 65V9H071, 9/16 Inch (in) Tube Outside Diameter (O.D.) VEE Stem 2-Way Straight High Pressure Needle Valve