Shurtape PC-622 Contractor Grade Duct Tape is a 12.5 mil thick premium-grade duct tape used for HVAC duct systems; the protection of window and door frames during stucco application; high performance motorsports applications; silk screening; and heavy duty bundling, sealing, seaming and splicing. Shurtape PC 622 has high tensile strength, is conformable, and has excellent holding power. UL 723 listed. PC-622 is currently offered in 5 stock colors; also please note Shurtape's version of olive drab is very dark as displayed in the product photo. If not otherwise specified widths shown in dropdown are in inches. NOTES: Sizes shipped will typically be the tape industry standard metric-cut sizes, i.e. 24mm for each 1 inch of nominal tape width ordered (rolls are approximately 5% narrower than the nominal size). This product's actual size is 48mm x 55m.