Amerimax Flexible 3 In. X 4 In. X 4 In. Downspout Adapter 53102 Amerimax
Available in both 2″ x 3″ x 4″ and 3″ x 4″ x 4″ sizes. It is used to connect your downspout to FLEX-Drain , 4″ standard corrugated pipe, 4″ PVC, and most other 4″ pipe. The flexible design allows an easier connection with mroe versatility than standard rigid adaptors.