ADS 4" 90-Degree Snap Elbow, the ideal fitting used to change a single-wall corrugated drain pipes direction 90-Degrees. This 90-degree elbow can be used in horizontal applications to go around objects or vertical applications such as a downspout application. Made of high-density polyethylene (HDPE), the 90-degree elbow is designed to last the life of the drainage system. It has a maximum working pressure of 0 psi and a maximum working temperature of 150 degrees Fahrenheit. The fitting size dimensions are 4 inchx4 inch and it is black with a barb connection on both ends. ADS single-wall fittings are the right choice for your residential and commercial drainage projects.