Profile: Dura-Line Corp. supplies polyethylene duct, pipe and conduit products. Our product line includes silicone, piggyback, future path and accessories. Our aerial placement of duct and strand features Silicore® super slick permanent lining and low temperature properties. Our accessories include cutter, ropes, tapes, end caps and standard metal couplings. Our self-supporting duct is an one-step placement of fiber optics, copper cable or coax applications.