National has built a reputation as one of the most respected names in the industry. We have offered premium sealing solutions for more than 75 years. Our design team keeps pace with the industry and provides advanced solutions for today's vehicles. Product Features:Design Type: Spring Loaded; Multi-LipOne-piece unitized designTemperature range: -100F to 450F; -73C to 232CResistant to hydrocarbon/oxygenate blends and provides superior performanceProvides excellent dry running capabilities, low coefficient of friction and excellent resistance to chemicalsDelivers quality and reliable performance for every type of repair