Pentair 2" HiFlow Bottom Valve Plate

The Pentair 2" Hi-Flow™ Multiport Bottom Valve Plate (Product #: 271161) is a factory-original OEM replacement internal structural component engineered to seal the lower pressure-side fluid channels of high-capacity pool and spa filtration networks. Specifically designed to bolt onto the bottom of Pentair, PacFab, and Praher 2-inch side-mount six-position multiport backwash valves—which are commonly paired with premium Triton® II sand filters and FNS® Plus or Quad D.E.® vertical grid separation tanks—this heavy-duty lower plate acts as the foundational boundary between the valve body and the filter's bulkhead plumbing lines. Precision injection-molded from a thick-walled, ultra-high-impact engineering polymer composite, the plate features a robust multi-bolt perimeter configuration that compresses uniformly against the valve housing to form an absolute, leak-proof mechanical seal. This rugged design safely manages continuous system operating line pressures up to 50 PSI, completely eliminating pressure-side water weeping and preventing catastrophic suction-side air induction that would otherwise cause pump cavitation or a loss of system prime. Its non-corrosive chemical matrix offers total immunity to aggressive pool sanitizers, concentrated chlorine shock, and heavy mineral scaling under extreme seasonal equipment pad heat. The physical dry weight of this single Pentair 2" HiFlow Bottom Valve Plate is approximately 0.85 pounds (roughly 13.6 ounces, with a packaged shipping weight of approximately 1.10 pounds), providing pool service professionals and DIY homeowners with a vital, highly reliable hardware standard for flawless pool water circulation control.