HPS 3mm High Temp Silicone Vacuum Hose Blue x 5 Feet (3mm wall thickness) Hose Inside Diameter: 3mm, Wall Thickness: 3mm (also available in thin wall 1.5mm) Temperature Range: - 65 deg. F to + 350 deg. F (177 deg. C) Color: Blue Length: 5 Feet Made of Premium grade Silicone, Heavy wall design gives it the ability to handle extreme pressure, Ultra flexible & Excellent tensile strength.