Shark 87392100 High-Pressure Hose, Blue/Red, 100-Feet Made of abrasion-resistant, steel-wire braid. Maximum-strength class a ors 20-percent more flexible than other brands Unique high-endurance wire braid Psi rating: 4500, hose length: 100-feet, wire braid: double, inside diameter: 3/8-inch, hose color: blue, hose guard color: red - blues hoses are non-marking