ECO is now known as PRO LITE, same great product. New Name. Designed for vehicular load and traffic, residential applications as well as pedestrian and bike applications, TRUEGRID PRO LITE is the toughest and most economical moderate-load permeable paver available. Made from 100% post-consumer recycled HDPE, TRUEGRID can be filled with gravel, seeded or sodded with grass or just laid to protect yard and prevent rutting and mud. TRUEGRID PRO LITE has compression strength equal to concrete, so you get natural, environmentally friendly robust paving tough enough for cars and trucks. Better than concrete or blacktop, PRO LITE is 100% permeable so stormwater flows through the surface. Great for gravel or grass parking lots, access roads, driveways, fire lanes, RV and boat storage pads and many other paving applications. Protects grass used for parking and traffic. Stormwater drains through grid surface and is detained in the gravel or grass filled cells and subgrade. Help reduce flooding and runoff and keep water from your front door. How to install TRUEGRID PRO LITE? Laying Grid 1. Start in corner of project area with male tabs of first grid facing towards the center of the area 2. Line up female slots of next grid over male tabs of first grid. 3. Press down with feet to lock grid into place. 4. Repeat until area is covered with connected grid. TRUEGRID’s integral flex-joints may have some draw due to seasonally conditions which may cause some +/- gain or loss in overall dimensions. 5. Gravel Fill: Fill grid with desired aggregate to top of grid. Lightly compact to settle. Grass Fill: Fill grid with soil and seed or sod.