Hydraulic Hose Lightweight, nylon core synthetic fiber reinforced* hose 6 feet in length. High flow hose with 3/8" inside diameter, and 3/8" NPTF ends. Operating pressure is 10,000 PSI. Complies with MHI Std. IJ100. No. 9780 - Hydraulic hose. * Note: This hose is not recommended for use where heat or weld spatter conditions exist.