The Aquascape 500 Gallon Water Storage Kit is the easiest way to create a sub-surface water storage reservoir for use in rainwater harvesting systems. The completed underground reservoir can be used to store up to 500 gallons of collected rainwater. The pre-packaged kit comes complete with 16 AquaBlox® Large Water Storage Modules, a 15' x 20' 45 mil EPDM liner, two 300 sq. ft. panels of non-woven geotextile underlayment, and a Pondless® Waterfall Vault Extension. When constructed, the components will create a basin that measures 6' x 9' x 4' deep. A variety of other available water storage kit sizes allows you the flexibility to choose the reservoir size that best suits your application.