Repair Clamp Bolt Material Steel Clamp Material Stainless Steel Clamp Material Finish Not Applicable Clamp Material Grade 304 For Maximum Copper Tube Size Not Applicable For Maximum Outside Diameter 1 1/2 in For Minimum Copper Tube Size Not Applicable For Minimum Outside Diameter 1 7/8 in For Pipe Size 1 1/2 in Gasket Coverage Partial Coverage Gasket Material Nitrile Rubber Maximum Operating Pressure 150 psi Maximum Vacuum Pressure 150 Number of Bolts 1