Pipe Repair Clamps Bolt Material 304 Stainless Steel Clamp Material Stainless Steel Clamp Material Grade 304 For Maximum Copper Tube Size 3/4 in For Maximum Outside Diameter 1 1/16 in For Minimum Copper Tube Size Not Applicable For Minimum Outside Diameter 1 1/16 in For Pipe Size 3/4 in Gasket Coverage Full Coverage Gasket Material Nitrile Rubber Maximum Operating Pressure 150 psi Maximum Vacuum Pressure 10 psi Number of Bolts 1 Outlet Connection Type Not Applicable