Comparison : Item # 865-4, 0.880 Inch (in) Dimension A AISI 1020 Carbon Steel NPTF Full Coupling
Item # 865-6, 1.000 Inch (in) Dimension A AISI 1020 Carbon Steel NPTF Full Coupling
Item # 865-8, 1.250 Inch (in) Dimension A AISI 1020 Carbon Steel NPTF Full Coupling
Item # 865-12, 1.500 Inch (in) Dimension A AISI 1020 Carbon Steel NPTF Full Coupling
Item # 865-16, 1.750 Inch (in) Dimension A AISI 1020 Carbon Steel NPTF Full Coupling