RO Plant Home Page, RO Plant Projects Page 14/12/202018/12/2020 RO Plant Home Page, RO Plant Projects Page Pakistan Refinery Limited Plant Type: Reverse Osmosis Plant Capacity: 150000 Gallons Per Day Client: Pakistan Refinery Limited Location: Karachi, Pakistan Project Status: Completed Completion Year: 1997 Upgradation of Reverse Osmosis Plant.