SWR Drainage Systems, the first to introduce UPVC Soil and waste discharge system for inside and outside building including ventilation and rain water system. SWR SYSTEMS - wholly owned by Piyush Chheda Group , pioneer to introduce SWR Drainage System in 1988. The company has set the benchmarks for its quality and service not only in India, but also around the Globe. PRINCE SWR products are manufactured in high-tech new generation machines with highest grade of virgin raw material, under stringent quality control measures, passing through roughest test.