Sterling Seal is a distributor of O-rings. O-rings are one of the simplest, yet most engineered, precise, and useful seal designs. They are one of the most common and important elements of hydraulic and pneumatic machines. O-rings and the other products that Sterling Seal sells are used in a wide variety of industries, including automotive, pump, transmissions, oil and energy, machinery, and packaging. These products are utilized primarily as seals to prevent leakage of liquids or a gas. Sterling offers a catalogue of standard sizes, and will take orders for special sizes not available in the standard catalogue. In order to satisfy the needs of our customers and stay competitive, Sterling Seal always maintains a wide variety of products in substantial quantities at its main warehouse in Neptune, New Jersey, as well as at its other facilities in Florida and Massachusetts.