The Amerimax 2 in. x 3 in. Vinyl B Downspout Elbow is strong and durable. The elbow helps redirect metal or vinyl downspouts parallel to the wall or the side of the house without the need for sealants or caulking. This redirects rainwater runoff to prevent erosion and foundation damage. Crush and dent proof vinyl construction to withstand extreme temperatures from minus 40 to 150 degrees Fahrenheit.