No-Drip Risers elevate Dramm Irrigation Nozzles 2 1/4 above the PVC pipeline. When pipeline water flow is shut-off, excess water falls back into the pipeline due to the height of the No-Drip Riser. This fall back helps control drip from nozzles overhead. No-Drip Risers can also be used to elevate Dramm Irrigation Nozzles above the soil line when pipes are buried for landscape purposes.