The PrimaTech HNBR O-Ring is the perfect choice for applications that require a reliable seal in extreme temperatures. This O-ring is made from HNBR, a synthetic rubber highly resistant to heat, oil and ozone. It remains flexible and maintains its sealing capabilities even at low temperatures, reducing the chances of premature failure and increasing its lifespan in demanding applications. FleetPride is your First Click in Heavy Duty®.