Turbosmart's 3M Pack -4mm Vac Tube Blue is the perfect spare for any setup. Designed to perform in extreme temperatures ranging from -50 Degrees C to 170 Degrees C (-60 Degrees F to 340 Degrees F), Turbosmart's high-performance silicone hose provides reliability and consistent performance. With Turbosmart, you can rest assured that you have a spare that will stand up against whatever conditions you may face, so it's ready when you need it most. Replace and repair with Turbosmart's 3M Vac Tube: engineered to win!