Smooth metal interior for easy wiring pulling * UV sunlight resistant jacket, rated for temperature range of -30-Degree C to 80-Degree C, 60-Degree C Oil (-22-DegreeF to +176-DegreeF, 140-DegreeF Oil) * Jacket seals out water, liquids, abrasives, alcohol, coolants, corrosive fumes and gases, grease, mineral acids, petroleum oils, salt air and spray * Accepts standard metallic liquidtight fittings * Rated for direct burial applications including concrete encasement