Pipe Insulation, Insulation Material Melamine, Installation Style Slit with Adhesive, Inside Diameter 7/8 in, Wall Thickness 1 in, Overall Length 4 ft, Minimum Operating Temperature -40 Degrees F, Maximum Operating Temperature 350 Degrees F, Jacket Material PVC Jacket, Color White, R Value 6.57, Form Tube, For Pipe Size 1/2 in, Flame Spread Index 25, Smoke Developed Index 50, Foam Cell Type Open, Plenum Rating Plenum Rated, Flexibility Flexible, For Tube Outside Diameter 7/8 in