The DripCap« is a patented water conservation tool & grow medium protector. It uses a new innovative dripping method, & hose holding technology. DripCap« covers the growing mediums surface from an elevated position. Air vents are incorporated into the sides of the cap allowing for the correct amount of air exchange as well as slowing the evaporation rate of your water & nutrients, saving money & resources. DripCap« has an even distribution of water & nutrients, completely covering the growing medium surface, efficiently and entirely, never having to relocate the DripCap«, saving on labor & costs. Grodan approved.