Founded in 1899, Compressor Products International is a manufacturer and supplier of sealing components for reciprocating compressors used in chemical plants, refineries, and natural gas processing and transportation facilities. It offers piston and rider rings, pistons, piston rods, packing rings and cases, oil wiper rings and cases, packing emission monitoring panels, reciprocating compressor valve components, valve actuators and valve unloader assemblies. Compressor Products International also manufactures and supplies butterfly valves under the brand name Gar-Seal. The company offers compressor-sealing components made of various materials, such as cast iron, bronze, steel and thermoplastic materials. Compressor Products International has manufacturing facilities located worldwide and is headquartered in Stafford, Texas.