The #390 620 Series 22-7/8=24-7/8 Inner Diameter is a high-quality, high-pressure hose designed for hydraulic, fuel, oil, coolant, and industrial fluid transfer applications. With an inner diameter (ID) of 22-7/8″ and an outer diameter (OD) of 24-7/8″, this hose is built for exceptional durability, flexibility, and resistance to extreme temperatures and pressures.