Generic Rainbow Power Nozzle Elbow Assembly, Fits: D3, D4, D4C, & SE Models, color brown Generic Rainbow Power Nozzle Elbow Assembly, Fits Models Rainbow D3, Rainbow D4, Rainbow D4C and SE Models. Color Brown. Fits Models: Rainbow R-1650, Rainbow R-1650C, Rainbow R-2800, Rainbow R-2800C, Rainbow R-4375, Rainbow R-4375C.