The pondless® waterfall vault is the ideal pump vault for use in pondless® waterfalls, rainwater harvesting systems, and more. Its durable, rotationally-molded, rounded polyethylene shape maximizes structural strength, while its large interior fits a wide range of pump sizes up to 12,500 gallons per hour. The vault's extra-wide opening makes it easy to access the interior of the vault for pump maintenance. The waterfall vault also includes a durable lid with a built-in water level inspection port, allowing the vault to be easily camouflaged and out of sight. The optional vault extension can be used when creating deeper basins using the large water storage modules, making it perfectly sized to meet the need of a wide variety of projects. The vault also carries a lifetime warranty, ensuring years of trouble-free use.