Orbit DripMaster 67446 1/2-Inch PVC to 1/2-Inch Drip Tube Adapter Ideal for connecting 1/2-inch (.690-.710) distribution tubing to 1/2-inch pvc pipe. Adjusts water flow from closed to full Works with 1/2-inch and 5/8-inch tubing (690-710) Durable construction provides years of reliable use For outdoor use with cold water only