This handy assortment of O-rings includes 18 of the most commonly used SAE sizes to accommodate a wide variety of applications! The nitrile O-rings are resistant to heat, high/low temperature, air, water, petroleum products, mineral oil and hydraulic fluids, natural gases, kerosene, silicon fluids, non-aromatic fuels and solvents. Great for plumbing, hydraulics, air, gas connections and man industrial applications, this set of O-rings comes neatly organized in a PVC storage case for easy portability to any job!