For use with either the DriStorm 2200 or the DriStorm 3800 Air mover. Just hook to the air mover grill and this gives you three 4" ductable connections to divert you air. Contains two removable caps and hose clamps so you can use 1, 2, or 3 connections at a time. Color or shade of plastic is not guaranteed. Also marketed under part number AFX-SN3