17 mm Drip Line is an efficient watering solution that delivers a uniform application of water directly to plant roots, either at the soil surface or root zone. All drip line watering works at a lower water pressure and reduces water wastage, meaning drip line watering is a more sustainable and cost-effective watering solution. 17mm Drip Line is the perfect choice when running longer lengths of pipe, ideal for larger garden beds, hedges, nature strips, vegetable gardens, and trees. The larger diameter causes less friction loss, which reduces pressure loss making the 17mm pipe more efficient at watering longer distances. Add a pressure reducer to your system to ensure water is delivered evenly along the entire length of pipe. Use connectors and end pieces to allow you to build entire grid and watering systems, providing greater flexibility and more efficient watering solutions. We advise purchasing stakes to hold the drip line pipe in place as the LDPE Drip line pipe can be stiff when uncoiled. Drip Line is quoted as internal diameter as fittings push inside the drip line pipe.