Comparison : Item # 845-4, 0.880 Inch (in) Dimension A AISI 1020 Carbon Steel NPTF Half Coupling
Item # 845-6, 1.000 Inch (in) Dimension A AISI 1020 Carbon Steel NPTF Half Coupling
Item # 845-8, 1.250 Inch (in) Dimension A AISI 1020 Carbon Steel NPTF Half Coupling
Item # 845-12, 1.500 Inch (in) Dimension A AISI 1020 Carbon Steel NPTF Half Coupling
Item # 845-16, 1.750 Inch (in) Dimension A AISI 1020 Carbon Steel NPTF Half Coupling