Pentair | 400000 | WhisperFloXF VS Wet End Assembly – Replacement for 5HP Variable Speed Pumps

The Pentair 400000 WhisperFloXF VS Wet End Assembly is a complete OEM replacement wet end designed to restore high‑performance hydraulics in 5 horsepower variable speed pool pumps. This wet end assembly includes the strainer housing, volute, diffuser, and other flow‑critical components engineered to work together to maximize water circulation and minimize energy loss.

Built from robust, corrosion‑resistant materials, the WhisperFloXF VS wet end assembly is ideal for systems with high flow demands, long plumbing runs, water features, and variable speed performance requirements. Installing this complete assembly helps ensure stable pressure, improved suction, and consistent system efficiency—especially in large residential or light commercial pool applications.

Pentair 400000 WhisperFloXF VS Wet End Assembly Compatibility

• Designed for Pentair WhisperFloXF VS 5 HP variable speed pumps requiring the 400000 wet end assembly.

• Compatible with variable speed models where OEM wet end components are specified for WhisperFloXF VS platforms.

• Works with 230 V / 208–230 V electrical configurations typical of high‑horsepower pool circulation systems.

• Suitable for large residential and light commercial pools with heavy flow and complex hydraulics.

• Integrates with standard 2.5″–3″ plumbing unions commonly used in WhisperFloXF installations.