Unplasticized Polyvinyl Chloride Column/ Riser/ Drop Pipes are used in the erection of submersible borehole pumps up to depth of 1000 feet. These Column/ Riser/ Drop Pipes ensure no rusting, corrosion or deterioration. These Column/ Riser/ Drop Pipes are light in weight and ensure easy installation. Unplasticized Polyvinyl Chloride Column/ Riser/ Drop Pipes are designed in such a way that they ensure long lasting service.