Finolex offers a wide range of casing and ribbed screen pipes which are manufactured using a special PVC-U compound. This makes them ideal for transportation of hard, salty, sandy, or chemically aggressive water. This range of PVC-U plain casing and ribbed screen pipes are specially designed to ensure clean, clear water from bore well, whether shallow, medium or deep. ASTM blue casing pipes are manufactured as per ASTM D 1785