Aluminum “Blue Ribbon” (ABR) is a UL listed non-jacketed flexible aluminum conduit has many universal wiring applications. It is often referred to as “Greenfield” or “Reduced Wall Flex”. This conduit is intended for installation as a metal raceway for wires and cable in accordance with the NEC (ANSI/NFPA-70). Article 348. Markets include: Construction, Data Centers, Fixture Whips, Security, Wastewater Treatment. This is a 7/16in x 100ft Type ABR spooled conduit.