Lamons Sterling Seal and Supply (STCC) OREPD280 O-Ring, Number-280 Standard is Good for Steam (400 Degree F), Hot Water, Sunlight, Silicone Oils and Greases, EPDM/EPR/EP, 14" ID, 14-1/4" OD Sterling Seal, EPDM O Rings have great acceptance in the sealing world because of its excellent resistance to heat, water and steam, alkali, mild acidic and oxygenated solvents, ozone, and sunlight (UV). These compounds also withstand the effect of brake fluids and Skydrol" and other phosphate ester-based hydraulic fluids. OREPD280 Features EPDM rubber (ethylene propylene diene monomer rubber) is an elastomer which is characterized by wide range of applications and good chemical resistance EDPM is also resistant to ketones, hot and cold water, and steam EDPM has good heat and compression resistance EDPM's service temperature -65 F to 302 F (-54 C to 150 C) EDPMs limitations are oils, gasoline, kerosene, aromatic and aliphatic hydrocarbon, halogenated solvents, concentrated acids, non-polar solvents, petroleum oils and aromatic fuels Fast and Free Shipping You're already purchasing the item. Why pay additional for shipping, especially slow shipping? We get your order shipped out within 1-business day and delivered to your doorstep as quickly as possible. Competitive Pricing With our dynamic pricing model, our prices are always competitive. Our prices are some of the lowest that you will find on the internet. Rest assured that you're getting a good deal when purchasing with us. 30-day Money Back Guarantee We are committed to making sure that you leave this transaction satisfied. If you're unhappy with the product for any reason, you may return it back for your money-back or a replacement within 30 days. No questions asked!