This single-acting Trelleborg O-Ring energized rod seal is made of Turcon® and provides high static and dynamic sealing results. Can be installed together with other seals in a tandem configuration for advanced static and dynamic tightness. The Trelleborg Turcon® Stepseal® 2K offers high extrusion resistance, low friction with no stick-slip, minimal break out force and high wear resistance.--Single-acting, rubber-energized plastic faced seal. Includes an O-Ring.