Grayline has been manufacturing flexible polymer tubing since 1966. With roots in the wire harnessing and electrical tubing markets, Grayline has expanded to many facets in the wire management industry. Most Grayline products are engineered to meet industry standards including UL/CSA, ASTM, AMS, Automotive, Military, EU Directives, USP, NSP, and FDA. Grayline has a talented engineering staff that has the knowledge to provide optimized solutions. Â