We are GWIS Chemicals & Engineering “The Water Treatment Company” located in Karachi-Pakistan. GWIS Chemicals & Engineering’s aim is to provide best possible solutions with best quality and competitive price to our prestigious customers regarding Reverse Osmosis, Waste water, Boiler & Cooling Tower. We are not only the pioneers in Water Treatment Chemicals but also a Genuine Service Providers. Our goal is to become trustworthy partner of choice for reliable solutions to fulfill the needs of our distinguished customers. We are specialized in following:  Reverse Osmosis  Ultra Filtration  ION Exchange Plant  Nano Filtration  Cooling Water Treatment  Boiler Water Treatment  Waste Water Treatment  Desalination Plant  Dyes Purification Plant  EDR Plant  Effluent Treatment Plant & Recycling  Close Circuit Water Treatment  De-Ionization Plant  Electrical & Mechanical Works  Electronics & Instrument Solutions