For equipment that is still worth keeping in service, Pentair IntelliFloXF/IntelliProXF Seal Plate O-Ring (351446Z) helps address the worn component instead of replacing the larger assembly. This seal helps maintain watertight compression around the connected assembly and protects against pressure loss. It is especially useful for seal replacement work where compression, fit, and material condition are key to preventing leaks.. Supports compatible Pentair equipment service Helps restore fit, function, or system reliability Useful for repairs, rebuilds, and preventive maintenance Confirm the model, voltage, plumbing size, horsepower, or system generation before ordering. Matching the 351446Z part number helps reduce installation issues and keeps the repair focused on the component that actually needs attention.