Use durable, weather-resistant 0.710 in. supply tubing as a main line to deliver water to a drip watering device or a feeder line, or use a series of emitters punched directly into the side of the tubing to distribute water along the line. The 0.710 in. supply tubing has an outside diameter (OD) of 0.710 in., internal diameter (ID) of 0.620 in. While other manufacturers use blended recycled material for their entire tubing, Raindrip poly tubing is constructed with an innovative layering method, using 100% virgin content for both inner and outer layers for a more durable product, and a middle layer of recycled content.