Pipe Fitting Insulation, Insulation Material Buna-N Rubber/PVC, Installation Style Unslit, Inside Diameter 2 1/8 in, Wall Thickness 1/2 in, Form 90 Degrees Elbow, Minimum Operating Temperature -297 Degrees F, Maximum Operating Temperature 220 Degrees F, R Value 3.2, Color Black, For Pipe Size Not Applicable, Flame Spread Index 25, Foam Cell Type Closed, Plenum Rating Plenum Rated, Flexibility Flexible, For Tube Outside Diameter 2 1/8 in, Resistance Properties Antimicrobial, Flame/Fire Retardant. This item has been restricted from sale in the following state (s): []