Profile: Grover Corporation specializes in providing rings and seals. We are an ISO 9001:2008 certified company. We offer compressor rings, hydraulic piston rings, power shift transmission and oil & gas compressors. Our sealing rings include angle cut sealing rings, angle step cut sealing rings, butt cut sealing rings, hook sealing rings, inseal sealing rings, lock seal sealing rings, ONEP sealing rings, step cut sealing rings, step lock sealing rings and step seal sealing rings. Our butt cut piston rings are an economical, easy-to-install, reliable and a versatile ring designed for a variety of combustion engine & compressor applications that allows higher leakage rates. We also offer a wide variety of face configurations and coatings to suit any applications. Our hook sealing rings are ideal for use in blind assemblies or wherever restricting ring movement is necessary during installation. They are designed for applications that require passing counter bores and retaining ring grooves. They are made of cast iron, ductile (modular) iron, Ni-resist, bronze, PTFE, stainless steel nickel-based alloys, steel and peeks. Our Permaseal™ sealing ring is designed for mobile & industrial hydraulic, shock absorber, air compressor, and gas turbine applications. It features a bi-directional seal that provides superior sealing efficiency designed to pass open ports and close the leak path through to the joint.