Comparison : Item # S1E052, 5 Inch (in) Nominal Diameter Pre-Assembled Turbine Butterfly Valve
Item # S19052, 6 Inch (in) Nominal Diameter Pre-Assembled Turbine Butterfly Valve
Item # S1A052, 8 Inch (in) Nominal Diameter Pre-Assembled Turbine Butterfly Valve
Item # S1B052, 10 Inch (in) Nominal Diameter Pre-Assembled Turbine Butterfly Valve