STP Manufacturers in Greater Noida | Sewage Treatment Plant manufacturer in Greater Noida, Gautam Buddha Nagar, Netsol Water, 9650608473 NSWSPL is India’s biggest Compact Sewage Treatment Plant manufacturer with its head office in Greater Noida. Netsol Water Compact Sewage Treatment Plant Manufacturers and distributed by Netsol Noida, Delhi, India, are prefabricated solutions, delivered to the customer able to install as Plug & Play and prepared for use. Netsol small sewage and wastewater treatment plants, & other similar products are internationally certified in line with the very best standards. The systems are packaged in cylindrical a polymer of propylene used as a thermoplastic molding material (polypropylene) containers and may be delivered with phosphorous removal kits UV-tertiary handling units.