O-Ring, Series Compact, Pro, Compatible with Grainger Part Number 2CAV1, 4RN27, 5U665, 5U666, Product Type O-Ring, Compatible with Manufacturer Part Number 666100-362-C, 666100-3EB-C, 666101-2EB-C, 666102-2EB-C, 666111-244-C, Compatible with Series Universal, Compatible with Brand ARO, Ingersoll Rand