The Treegator® Original is a slow-release watering system for new trees. designed to deliver a high volume of water directly to the root system of a newly planted tree with no run-off or evaporation. A single bag fits trees with a trunk diameter of up to 3 inches. Zip 2 bags together back-to-back to fit trees with trunks up to 8-inches in diameter. A Treegator® Original Slow-Release Watering Bag saves you time, money and effort, all while properly and efficiently watering your new trees. Other watering bags may look like, or even claim to work as well or better than a Treegator® Slow-Release Watering Bag, but Treegator is the only watering bag for trees that has been used and trusted by industry professionals worldwide since 1991. Made in the USA and backed by a Lifetime Manufacturer Warranty.