Dust RightA (R) 4"" Quick Release Starter KitMove dust collection from one tool to the next like never before! One end of the 4"" Dust RightA (R) Tool Port connects tightly to any tool with a 4"" dust port, while the other end fits perfectly into the Dust RightA (R) Handle (which connects to 4"" hose and, ultimately, your dust collector) , allowing you to move dust collection to right where you need it. The ports feature a flexible rubber boot on one side that guarantees a tight connection and allows for slight variations in the size of the tool's dust port.
I've bought this Rockler Dust RightA (R) 4'' Quick Release Starter Kit for my uncle. It's great gift for just 21.99.