• The silicone heater hose withstands high temperatures and pressures, ideal for inlet and outlet systems and engine cooling systems. • Versatile uses: it can be used as a water tube, heater hose, vacuum tube, among others. • Specifications: 3mm (1/8 inch) wall thickness, 19mm (3/4 inch) inner diameter, 25mm (1 inch) outer diameter, 101 Psi maximum working pressure, temperature range from -50°C to 200°C (-58°F to 392°F). • Made with thickened and reinforced silicone, it offers resistance to high and low temperatures, high pressure, flexibility, durability, and long service life. • Installation steps: 1. Prepare a silicone vacuum tube of the appropriate size; 2. Remove the silicone tube to be replaced; 3. Complete the installation. • Note: It is not resistant to fuel and oil.