Solid Sweep w/38' Adj. Alley, Alley Gate, Preg Panels, Blocking Gates, Scale Section and Sorting Gate - SS-9This setup adds an 8 section of alley and another Alley Gate to the SS 8 to create a space for a single animal scale in the alley way. SS 9 Sweep w 38' Adj. Alley, Alley Gate, Preg Panels, Blocking Gates, Scale Section & Sorting Gate This heavy duty, completely reversible crowding system includes a 135 degree sweep with a 38 working alley. Very similar to our SS 9, this system also includes an 8 section of alley designed to work with a scale platform