Pipe Repair Clamps Bolt Material 304 Stainless Steel Clamp Material Stainless Steel Clamp Material Grade 304 For Maximum Copper Tube Size 1 in For Maximum Outside Diameter 1 5/16 in For Minimum Copper Tube Size Not Applicable For Minimum Outside Diameter 1 5/16 in For Pipe Size 1 in Gasket Coverage Full Coverage Gasket Material Nitrile Rubber Maximum Operating Pressure 150 psi Maximum Vacuum Pressure 10 psi Number of Bolts 2 Outlet Connection Type Not Applicable