FRP (also known as GRP) is a modern composite material of construction for chemical plant equipment like tanks and vessels. Due to the corrosion resistant nature of FRP, these tanks are extensively used to handle corrosive liquids. These vessels have good mechanical strength and they are weather resistant to a great extent. These properties make the FRP vessels an ideal choice to be used as RO membrane vessels. These vessels are available in standard sizes of 4" & 8" diameter and are designed to house 1-6 membrane with working pressures up to 1000 psi. These vessels are also available in SS material.