Using the GreenStalk's patented watering system, the GreenStalk Spring adds an automatic watering system to make taking care of your planter even easier! Each kit includes enough components to set up a 5 Tier Original, 7 Tier Leaf or Inventor's Bundle. Use your favorite timer to control how often your plants are watered. Can be used with bases, but the GreenStalk Spring would need to be disconnected before rotating or moving your planter. GreenStalk Planters & Timer are sold separately. Please note that the valve may be orientated in different directions. This does not impact the function of the watering system.  Featuring: A Spring Lid (in your choice of color) for the top water reservoir to help keep debris out of the system Exclusive to GreenStalk, clips that easily attach tubing to the side of the planter Quick setup for a single planter or multiple planters, easily cut tubing to attach to smaller planters Connects to a standard garden hose, only one timer needed per spigot All components are proudly made in the USA, with BPA-free materials