These weighted water emitters allow you to easily place and remove them from your pots and containers. Simply drop them on the soil of the container and the weighted emitter will keep them in place. Great for retail areas where material is regularly moving. Emitters also can be turned on and off by simply twisting them. Emitters water at a ½ GPH rate. Assemblies come with 36” distribution line and emitter to attach to overhead mainline.