20' Sheeted Adj. Alley w/Alley Gate & Preg Panels - SS-6Similar to the SS 5, this 20' alley also includes 2 pregnancy panels. One of these panels can be easily reversed to serve as a sorting gate. SS 6 20' Sheeted Adj. Alley w Alley Gate & Preg Panels This heavy duty 20 alley kit is a great way to add length to your Solid Sheeted Alley. The SS 6 includes two Sheeted Preg Panels. The Preg Panels can be used to provide secure access for palpation or AI work, and can also double as sorting gates. This system