Solid Sweep w/20' Adj. Alley, Preg Panels, Blocking Gates and 8' Sorting Gate - SS-13The SS 13 features a 135 degree sweep, a 20 adjustable alley, pregnancy panels, and an 8 bow gate for optional loading from the sweep. SS 13 Sweep w 20' Adj. Alley, Preg Panels, Blocking Gates & 8' Sorting Gate This heavy duty, completely reversible crowding system includes a 135 degree sweep with a 20 working alley. The SS 13 is great for permanent operations and has several unique, practical features not found in most other solid sweeps that help