A 6-pack of Basic Systems with a nice volume discount. Reduce your time from 1.5 hours to less than 10 minutes while decreasing water usage from 120 gallons per week to only 30. Much faster and easier to use than Watering Bags. One application soaks the root-well of small trees. Tree I.V. can be moved out to the drip line of larger trees, promoting outward root development. Watering bags cannot do this. Built in the USA with quality and durability second to none!