Intertape 2-1/2 In. x 60 Yd. UL 181 Aluminum Foil Tape

UL181A-P & 181B-FX tape. Meets LU 181B-FX code for sealing flexible air ducts and air connectors. Conformable and hand tearable. Single-ply construction; will not delaminate upon aging. Used to tape and seal joints and seams of fibrous duct boards, metal ducts, flexible ducting, and insulation facing in ventilation and construction industry. 2.5' x 60 yd.