1/2" ID POLY-HOSE 50' ROLL. Sold by the foot. Great for running nutrient solution to several locations. Design your own hydro system. This hose is so strong that you can insert poly 1/4-inch poly tube directly into it without the need of barbed fittings. The secret is in the poly itself. The spray tube inserted is also made of the same poly material. This makes it leak free!Works with all 1/2-inch barbed fittings listed on this site.