FullFloXF Backwash Valve 2-3 Inch Side Mount - Inlet Port on Bottom (D.E.) mount-style_Side 50 inches for the rail

50 inches for the rail tubing and the distance between the front (pool) rail and back (anchor) rail is 60 inches

30 inch (84297-00)

this tread slopes 15 degrees forward when properly installed

or four Child Choking Manikins

FullFloXF Backwash Valve 2-3 Inch Side Mount - Inlet Port on Bottom (D.E.) mount-style_Side 50 inches for the railThe FullFloXF High Performance Valve has near zero pressure loss across the valve which significantly reduces the amount of energy required by a filtration system. Depending on your utility rates, this valve could save you hundreds of dollars per year when compared to a typical backwash valve. The FullFloXF Backwash Valve easily retrofits to Pentair FNS Plus D. E. filters.