1971 : Company founded Middlesboro, KY water and gas products

1981 : First manufacturer of FO subduct & first manufacturer of duct with pre installed pull line

1984 : Introduced EVEN-LOAD pull line slack system

1985: First manufacturer to offer all major types of ducts including Smoothwall, Ribbed, Corrugated, Cable-in-Conduit,
            Pre-lubricated, FR

1987: Introduced DURATHANE

1991: First ISO 9000 certification

1992: Introduced FIREJACKET

1993: Founded Dura-Line Czech Republic

1995 : Founded Dura-Line Mexico

1997 : Founded Dura-Line India

1998 : Introduced Pinpoint^TM locatable duct
             Opened Pryor Creek, OK location

1999: Purchased Integral Corp

2000 : Introduced Aerial Drop Duct

2003: Introduced Tornado Duct

2005: Introduced TornadoPlus Duct

2007: introduced dura.bend - Electrical Conduit

2008: Introduced DuraSure duct