Pipe Clamp, Bolt Material Not Applicable, Clamp Material Alloy Steel, Clamp Material Finish Zinc Galvanized, Clamp Material Grade 1.0503, For Maximum Copper Tube Size 4 in, For Maximum Outside Diameter 4 1/8 in, For Minimum Copper Tube Size 1/2 in, For Minimum Outside Diameter 1/2 in, For Pipe Size 3 1/2 in, Gasket Coverage Not Applicable, Gasket Material Not Applicable, Maximum Vacuum Pressure Not Applicable, Number of Bolts Not Applicable, Outlet Connection Type Not Applicable