Heyco-Flex™ I Flexible, non-metallic liquid tight conduit. Integral rigid and flexible PVC construction. Smooth inside for easier wire pulling, no hazardous sharp edges or burrs will not damage conductors. Lightweight and lower installed cost. Use with nylon Heyco-Flex connectors, straight, snap-in or sweep. Also use with NPT quick twist fittings and Heyco's metallic fittings for liquid tight conduit. Resists corrosion, abrasion, oil, water, acid, metal shavings and rough environments. Sunlight resistant. Suitable for indoor/outdoor use: HVAC equipment, machine tools, marine equipment, motors and controls, printing equipment, pumps, refrigeration equipment applications.