Atlantic WG Water Matrix Block Pondless Underground Water Storage Structure 27 in. L x 16 in. W x 17-1/2 in. H Composite Black

Water matrix blocks installed in lined excavations create weight-bearing underground water storage reservoirs. Save labor, time and money on Pond-free, rainwater harvesting and storm water management installations versus gravel-filled reservoirs. Eco-Blox lock together quickly and securely, easily supporting landscaping, pavers, gravel or sod for great design versatility.