Percoa USA LLC has developed the only Patented Pre-cast Pervious concrete slabs that are environmentally friendly, durable, versatile, cost-effective, and easy to install. Percoa products can be used for new construction or to retro-fit existing concrete or asphalt surfaces such as parking lots, driveways, walkways, patios, storm water runoff basins, and many other surface applications where water runoff is a concern. Percoa Slabs are a Sustainable Solution.