FullFloXF Backwash Valve 3 Inch Side Mount - Inlet Port on Bottom (D.E.) - No Fittings or Unions width_4 Inches They also have an integral

They also have an integral design base which is slotted for ease of mounting

chemical saving and energy saving programs

Simply snap eraser onto standard pool pole

and Sta-Rite/SwimQuip 355051424

FullFloXF Backwash Valve 3 Inch Side Mount - Inlet Port on Bottom (D.E.) - No Fittings or Unions width_4 Inches They also have an integralThe 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.