Pentair 261055 Multiport Valve for Triton And Quad D.E. Filters, 2 Inch, 7 1/2 Inch Centerline Multiport valve replacement Fits Pentair Quad pool and spa D.E. filter models QUAD60, QUAD80, QUAD100 Also fits Pentair Triton C, II and HD side mount pool/spa sand filters PVC body and special winterizing position; six-position, positive-lock operation Measures 2-inch