Pentair Inlet Pipe Assembly with Bulkhead | FNS Plus | 190043

Description

The Pentair Inlet Pipe Assembly (190043) is the OEM replacement inlet pipe assembly — including bulkhead — for the Pentair FNS Plus vertical grid D.E. filter series.

This assembly delivers the internal water inlet pathway that directs water from the plumbing into the FNS Plus filter body. A failed or cracked inlet pipe assembly can result in bypassed filtration, internal leaking, or loss of flow distribution across the filter grids — making this a direct-replacement service part for restoring correct filter function.

Specifications

Fits Into

Compatibility is based on Pentair parts documentation and available OEM records. This is not an exhaustive list. For certainty, verify the part number in your equipment’s manual or on the original part itself before ordering.

Poolaroo Pro Tip

When replacing the inlet pipe assembly, inspect the bulkhead O-ring and surrounding filter tank threads for wear or mineral deposits before reinstalling. The included bulkhead must seat squarely against the filter body — any misalignment can cause slow internal leaks that are difficult to detect until the filter loses efficiency. Confirm the model designation (24, 36, 48, or 60) on your existing filter tank label before ordering, as the FNS Plus series spans multiple tank sizes that share this part.