Extrutech Plastics Inc. has added four new products to its ever-growing product offerings. These products include: the EFS-8, Extrutech Form System for eight-, 10- and 12-inch concrete walls; the EFSI-8, Extrutech Form System for insulated concrete walls; the P224 Wall Panel made for interior partition walls and clean rooms; and the P645 Angle Form connector for the construction of concrete circular and oval storage tanks, or above or below ground swimming pools.