Pipe Fitting Insulation, Insulation Material Melamine, Installation Style Slit in Half, Inside Diameter 1 19/50 in, Wall Thickness 1 14/25 in, Form 90 Degrees Elbow, Minimum Operating Temperature -40 Degrees F, For Copper Tube Size Not Applicable, Maximum Operating Temperature 350 Degrees F, R Value 9.8, Color Gray, For Pipe Size 1 in, Flame Spread Index 25, Foam Cell Type Open, Plenum Rating Plenum Rated, Flexibility Flexible, For Tube Outside Diameter 1 19/50 in