This silicone O-ring is red in color, round in shape, has a durometer of 50, and is designed for use in a wide variety of sealing applications.Can be used across a wide temperature range from -22 (-30 ) to 392 (200 )Before installing, apply the product evenly and lubricate oil evenly. Use the auxiliary tool to ensure the correct positioning and then install it manually.It has good resistance to ozone, weather, salt water, non-petroleum brake fluid, hydraulic fluids that resist fire, vegetable and animal oils, and high molecular weight chlorinated aromatic hydrocarbons. It is a great solution for sealing application where there are high temperatures and corrosive liquids or gases involved.Used widely for mechanical sealing, pressure, gas compressor, reaction, heat exchanger, boiler, filter, electrical appliance and other fields.Specifications:Outside Diameter: 130mm / 5.12-inchInner Diameter: 123.8mm / 4.87-inchCross-Section Diameter: 3.1mm / 0.12-inchPackage Content: 1pcs x Silicone O-Ring