Premium quality water hose suitable for engine raw water intake and circulation, bilge, drain. 23612 Premium Single Wire Hardwall Water Hose - 100 Series1-1/4 x 50' Temperature range is -20 degrees F to 220 degrees F -29 degrees C to 104 degrees C. Resists heat, ozone, mild acids, bilge oils and engine water. Tough, fully-embedded helical wire construction provides excellent strength and flexibility.