Aero Exhaust 1.5" Black Silicone Straight Hump Hose 3 Ply You can cut silicone parts down to fit with a razor knife or PVC pipe cutter Heat tolerance: -40&deg; to 392&deg; Fahrenheit Burst Pressure: 100 PSI Working Pressure: 32 PSI Wall Size: 3 mm- 4 mm Compatible with antifreeze/coolant