Features: * Built-in overflow system where excess water and nutrients are delivered straight to the rootball. * 360° bottom lip directs all water and nutrients to your plant. * Four three-way stakes on the bottom for extra stability. * Holes in all four corners for leftover water drainage. * Stackable. * Reusable. * BPA and lead-free plastic.
Advantages: 1.Reduce top feed counts by 50%! 2.Never waste a drop - encompassing bottom lip directs all liquid into your Rockwool cubes and straight to your plants' roots. 3.Feed your plants less - Let root zones dry more consistently rates .the lids covers top of media, still allows necessary oxygen. 4.Built in overflow saves excess water and nutrients. Maneuvering your plants is now much easier by grabbing ahold of the lids.