Besides the EPS and steel/ aluminum systems we also supply the PEVAL A.P.S. system. This stands for Aqua Plant System. It is a unique system whereby plants will be put on a special capillary mat which is placed on a special shaped PE liner with on both sides a water buffer.The thin mat reaches into these buffers and in this way there is a 2-way water transport. The plants will be irrigated by a normal drip system and have their roots in the mat and in the buffers.