Engineered to draw the dust down from the router bit and deliver to a 4" port for collection, all while substantially minimizing router noise, this steel collection box features interchangable panels for optimum dust port and vent placement. Plug the 2.25" dust hose from the router fence directly into the dust box's branch inlet, and let the 4" port deliver above and below table dust from the same port. Collects below-table dust. Connects to 4” dust tube. Compatible with all SawStop Router Tables.