For the installation and protection of electrical conductors in circuits of 600 volts nominal, or less. Manufactured with a spiral of rigid PVC reinforcement imbedded within a flexible PVC wall. The construction provides excellent impact and crush strength while remaining highly flexible. A protective combination of thermoplastic materials formed into a conduit which seals out water, liquids, abrasives, alcohol, coolants, corrosive fumes and gases, dirt, grease, mineral acids, non-concentrated fixed alkalines, petroleum oils, salt air and spray, and weather. Smooth metal interior for easy wiring pulling. UV sunlight resistant jacket. Rated for temperature range of -30 to 80 degrees C , 60 degrees C Oil (-22 to +176, 140 degrees F Oil). UL Listed.