3M 3365/20SF is a 100-foot length of flame-resistant/low smoke, halogen-free, LSZH electrical conduit that is suitable for direct burial applications. It has a thermoplastic elastomeric (TPE) insulation that is resistant to oils, acids, alkalines, moisture, and impact. It also has a smooth interior finish that minimizes the accumulation of dirt and debris. The outer jacket is gray and UV stabilized. It is suitable for installation into walls, floors, or ceilings; in both indoor and outdoor applications; and in direct burial applications. The wiring protection of 3M 3365/20SF is approved by the Underwriter's Laboratories Class I, Division 2, and Class I, Zone 2.