The Little Giant water feature vault allows for easy access to pumps and provides protection from heavy rock and debris. Its rotational molded polyethylene provides extra durability, and wall ridges offer added strength. Sturdy vault lid allows you to conceal the unit with rocks, gravel, plants, etc. Predrilled 3-inch discharge port takes the hassle out of installation. Multiple inlet vents allows unit to collect water at a rapid pace. Measures 19.25-inch length by 19.25-inch width by 24.5-inch height.