Comparison : Item # MP-04-02, 1/4 Inch (in) Inner Diameter and 1/8 - 27 Inch (in) Thread Size Carbon Steel Standard Shell NPTF Male Rigid Hydraulic Hose Coupling
Item # MP-04-04, 1/4 Inch (in) Inner Diameter and 1/4 - 18 Inch (in) Thread Size Carbon Steel Standard Shell NPTF Male Rigid Hydraulic Hose Coupling
Item # MP-06-04, 3/8 Inch (in) Inner Diameter and 1/4 - 18 Inch (in) Thread Size Carbon Steel Standard Shell NPTF Male Rigid Hydraulic Hose Coupling
Item # MP-06-06, 3/8 Inch (in) Inner Diameter and 3/8 - 18 Inch (in) Thread Size Carbon Steel Standard Shell NPTF Male Rigid Hydraulic Hose Coupling
Item # MP-06-08, 3/8 Inch (in) Inner Diameter and 1/2 - 14 Inch (in) Thread Size Carbon Steel Standard Shell NPTF Male Rigid Hydraulic Hose Coupling