Nashua 1.89 in. W X 60.1 yd L Gray Duct Tape

Nashua 558CA pro-grade is UL code approved for sealing class 1 flexible (181B-FX) duct joints and connections. With a metalized laminate backing printed for easy inspection and a uniquely durable rubber adhesive, Nashua 558CA is also approved by the California energy commission (CEC) for use on ducts. Nashua trusted tapes get the job done right, the first time and every time.