This kit can be added to any bin-style hydroponic system. You choose the number of drippers based on the number of sites you have in your system. Adding this kit will increase your yield and your plants will grow faster. Adding a circulating kit will also help keep the nutrients mixed better. The drip lines drip the nutrient rich solution down from the base of the plants through to the tips of their roots. It will help prevent your grow medium from drying out in between waterings. Available in 250 and 400 gph also.