Protection Shield Finish Pre-Galvanized For Insulation Outside Diameter 4.5 in Insulation Thickness Range 1/2 in to 1 1/2 in Material Steel Maximum Operating Temperature 150 Degrees F Minimum Operating Temperature -32 Degrees F Mount Type Clevis Hanger Overall Length 12 in For Pipe Size 1 in to 3 in Standards ANSI/MSS SP-69 Federal Specification A-A-1192A Type 40 MSS SP-58 Type 40 WW-H-171-E Type 41