GRP is the abbreviation of Glassfiber Reinforced Plastic.GRP water tank can also be called FRP(Fiberglass Reinforced Plastics) water tank. 

GRP water tank is made from fiberglass and high quality resin which is molded at a high temperature and high-pressure. It is non-harmful and can be easily assembled by bolting them together. The tank can be assembled precisely according to requirements due to the range of panels available with varying strength, thickness and dimensions.The panel are designed to meet the highest standards of sanitary storage of potable water.