Wet End Replacement for Pentair Whisperflo Pumps 1-2 HP - Complete Kit

In this review the Wet End Replacement kit is judged on fit, durability and completeness for owners of Pentair Whisperflo pumps. It is aimed at pool owners or service techs who need a full wet end swap to restore performance without buying a new pump. The single biggest reason to buy is the all-in-one nature of the kit: it bundles a reinforced seal plate, housing, basket and every small part needed so installation rarely requires extra trips for missing pieces.

Key Features

• Complete kit: Includes the seal plate, shaft seal, diffuser, pump basket, housing and lid so users get a full wet end replacement in one package.
• Wide compatibility: Designed to fit Pentair Whisperflo models including 1 HP, 1.5 HP, 2 HP and the 011515 model, reducing compatibility uncertainty.
• Reinforced seal plate: The seal plate uses roughly 30% more material which improves resistance to warping and extends service life compared to the original part.
• Durable components: Critical parts such as the housing and pump basket are abrasion resistant and tested for longevity to handle normal pool debris.
• All hardware included: Foot inserts, pot screws, hi temp unions, locking ring and lid o-ring are provided so the assembly is ready out of the box.

Who It's For

This kit is best for do-it-yourself pool owners and repair professionals who need a drop-in wet end replacement for Pentair Whisperflo pumps rated from 0.5 HP up to 2 HP models, or for those maintaining older systems where a direct replacement minimizes downtime. Its comprehensive hardware selection and reinforced seal plate make it a sensible choice when wear or leaks have compromised the original wet end.

Users who should look elsewhere include owners of non-Whisperflo pump makes or models not listed here, and anyone who needs a single spare part rather than a full wet end, since this kit is intended as a complete replacement rather than a solitary item swap.

Pros & Cons

Pros

• Complete wet end package minimizes missing-part issues during installation.
• Reinforced seal plate feels sturdier and addresses common warping concerns.
• Included hardware and hi temp unions make it convenient for professional or home installations.

Cons

• While most customers report good durability, a minority have experienced early failure in service, so longevity can vary by use conditions.

Specifications

Our Verdict

The Wet End Replacement kit is a practical, value-oriented option for anyone repairing a Whisperflo pump because it provides nearly every part needed and improves on the original seal plate for better resilience. For most pool owners and technicians it delivers straightforward replacement value, though a few reports of early breakage mean outdoor conditions and installation care will affect long-term results.

Frequently Asked Questions

Will this kit fit my Whisperflo pump?
It is designed for Pentair Whisperflo 1 HP, 1.5 HP, 2 HP and the 011515 model; confirm your model number before ordering.

Are all mounting parts included?
Yes, the kit includes foot inserts, pot screws, locking ring, lid and o-ring plus hi temp unions so no additional hardware is normally required.

Is the seal plate stronger than OEM?
Yes, the replacement seal plate is made with about 30% more material for improved strength and reduced chance of deformation.