This product is available in the following size: 7 7/8″ X 11 13/16″ in. A ground-breaking, storm-water management paving system for heavy traffic industrial, commercial and institutional use. It is the ideal solution to address the growing need (and requirement) to increase ground permeability and storm water management. It meets sustainability goals (LEED projects), reduces municipal sewer network overload and provides a cost-effective solution far more durable than conventional asphalt pavements with traditional stormwater drainage solutions. The pavers are 100 mm (3 15/16 in.) thick with an aspect ratio (length divided by thickness) of 3 resulting in a very strong and sustainable permeable pavement. In addition, a mechanical clamp, can be supplied by Techo-Bloc to increase the efficiency of installation to an average of 6000 Square feet per day per clamp – compared to the average installation of 1000 Square feet per day with a crew of 5 laborers. Hydra is part of the dry cast collection.