This is the kit for The Large Pest Thwarting Elevated Garden that ensures plants always have an adequate supply of water available. Its large reservoir sits inside the garden bed on top of the liner and can then be covered with soil or compost. Plants draw water up directly through the roots for more even hydration that helps prevent over watering. A water level indicator makes it easy to tell when a refill is needed and a tube funnel that rises above the soil allows for easy replenishing. Manufactured from strong and durable plastic. Assembly required.