PISTA®'s Grit Screw Conveyor is designed for concert application using full PISTA® Grit Removal System. The lamella plate design aims to help retain the fine grit, and simultaneously break turbulence and overflow. The Dewatered grit can be used for disposal, as long as 93% of the flow and 95% of organics are returned to the inlet channel. In addition, the screw conveyor comes with two sizes, the Model 15 and Model 17.