Advanced Drainage Systems is the worlds largest producer of corrugated HDPE pipe and related drainage products. Ads serves the storm and waste water industry through a global network of 56 domestic and international manufacturing plants and 27 distribution centers. In addition to its flagship N-12 pipe, the company offers a complete line of fittings and other accessories including, nyloplast drainage structures and various geotextiles. Made from durable high density polyethylene. This injection molded down spout adapter quickly connects standard 3 x 2 rain gutter downspouts to 4 inch drainage pipe. The adapter snaps easily in place for easy use.