DIG T.O.P. 12-Outlet Pressure Compensating Drip Manifold Kit Assembly - Pack of 5Designed to retrofit a 1 2 sprinkler riser, DIGs TOP 12 outlet drip manifold utilizes extremely accurate, pressure compensating individual and interchangeable drip emitters to ensure equal flow from each outlet over a wide range of operating pressures from 10 to 80 PSI. Available with 1, 2. 2 and 3. 3 GPH per outlet, the TOP can deliver water directly to up to 12 plants with less water evaporation and wind drift than the overhead sprinkler heads it