Swimables 1HP Impeller for WhisperFlo Pumps
★ Key Benefits +
- Replaces a damaged 073128 impeller in correctly matched pumps.
- Provides the rotating component that moves water through the pump.
- The exact replacement reference helps prevent ordering by horsepower alone.
- Supports repair of the pump's internal hydraulic assembly without purchasing a complete pump when the other components are serviceable.
ⓘ How to Use +
▦ Specifications +
Manufacturer: Swimables
Manufacturer part number: SW-21-003
Industry replacement reference: Pentair 073128
Manufacturer horsepower designation: 1 HP
Product type: Internal pool pump impeller
Pump family: Pentair WhisperFlo
WhisperFlo model references for 073128: WFE-4, WFE-26, WF-4, WF-26, WFK-4, WFDS-4 and WFDS-26
Fit requirement: Match the original impeller number, pump model and motor configuration
UPC: 810108823148
🏅 Buy with Confidence from Benchmark Pool Supply +
Order the Swimables SW-21-003 from Benchmark Pool Supply with its 073128 replacement reference clearly identified. Confirm your existing impeller number and pump configuration before purchase so the replacement matches your equipment.
Buy with Confidence from Benchmark Pool Supply
- Trusted pool professionals
- 100% Genuine Manufacturer Parts Guaranteed
- Shipping options for eligible products
Related Products & Replacement Parts
Shop related products, replacement parts, and compatible pool equipment that may fit, replace, or support this item.
+ Full Product Description +
Consistent circulation starts at the impeller. The Swimables 1HP Impeller Replacement (073128 / SW-21-003) is a precision-engineered replacement designed specifically for Pentair WhisperFlo® pool pumps operating at 1 horsepower. When an impeller becomes worn, cracked, or partially blocked, the pump may experience reduced flow, loss of efficiency, and increased motor stress.
This impeller restores proper hydraulic performance inside the pump, allowing water to move efficiently through the filtration and circulation system. Manufactured to OEM-equivalent specifications, it provides a reliable, cost-effective alternative to factory-branded impellers while maintaining proper fit and performance.
The Swimables 1HP impeller is commonly replaced during pump rebuilds, seal replacements, or when troubleshooting low flow or pressure issues.
Restores Proper Flow and Circulation Efficiency
The impeller converts motor rotation into water movement. Even minor wear can significantly reduce circulation and affect filtration, heating, and cleaner performance.
The Swimables 1HP impeller restores proper flow and pressure, helping the pump operate efficiently and maintain stable circulation throughout the pool system.
Designed for Pentair WhisperFlo® Pumps
This impeller is engineered specifically for compatibility with Pentair WhisperFlo® pumps configured with a 1HP motor. Accurate thread engagement and balanced construction ensure smooth installation and reliable operation.
Using the correct impeller helps prevent cavitation, vibration, and premature wear on seals and bearings.
Durable Construction for Long-Term Reliability
Pool pump impellers operate continuously under load in chemically treated water. The Swimables impeller is constructed from durable materials designed to resist erosion, cracking, and deformation over time.
Its balanced design supports smooth rotation and reduces stress on the motor shaft and mechanical seal.
Why Replacing a Worn Impeller Matters
A failing impeller can compromise the entire circulation system.
Replacing the impeller helps:
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Restore proper water flow and pressure
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Prevent motor overheating and excessive wear
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Improve filtration, heater, and cleaner performance
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Extend the overall life of the pump
Routine impeller replacement is an important part of pump maintenance.
Product Specifications
| Specification | Details |
|---|---|
| Product Name | Swimables 1HP Impeller |
| Part Number | 073128 |
| Manufacturer Part | SW-21-003 |
| SKU | SW-21-003 |
| Manufacturer | Swimables |
| Horsepower Rating | 1 HP |
| Compatible Pumps | Pentair WhisperFlo® |
| Pump Type | Pool circulation pump |
| Function | Generates water flow and pressure |
| Installation | Internal pump impeller replacement |
Buy with Confidence from Benchmark Pool Supply
When you purchase the Swimables 1HP Impeller Replacement from Benchmark Pool Supply, you’re buying from a locally owned pool supply retailer that understands pump repair, compatibility, and real-world service needs.
Benchmark Pool Supply supports homeowners and service professionals with quality replacement parts, knowledgeable assistance, and convenient online ordering with in-store pickup. We stock the components that keep pool systems operating efficiently and reliably.