Used for germination, rooting and seedling. Also applicable for humidity controlled environment. Used for reducing high temperature and creating micro climate conditions in greenhouses, chicken coops and animal houses. Available flow rates: 20-180 lph (0.09-0.79 gpm). The use of NDV (non-drip device) is highly recommended in order to prevent dripping when opening and closing the water, keeping the pipes full and shortening the pulsing cycle. And save water.