Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
Still not sure? Call (818) 818-6559 and we'll find it for you.
Other parts on the same Pentair WhisperFlo Pump
The Swimables Impeller for WhisperFlo Pumps (SW-21-003) is a high-quality replacement designed for 1HP to 1.5HP models, serving as a direct substitute for the 073128 part. This impeller ensures optimal water flow and pump efficiency, contributing to the overall performance of your pool's circulation system. Constructed from durable materials, it offers long-lasting reliability and seamless compatibility with WhisperFlo pumps. Installing the SW-21-003 impeller is straightforward, making it an essential component for maintaining your pool's pristine condition.
- Direct Replacement: Specifically designed to replace the WhisperFlo 073128 impeller for 1 HP to 1.5 HP pump models.
- Boosts Circulation Efficiency: Helps maintain strong water flow and maximizes pump performance for consistent pool circulation.
- Durable Build Quality: Made from tough, long-lasting materials to withstand demanding pool environments.
- Perfect Fit: Seamlessly compatible with Pentair WhisperFlo pumps for reliable operation and easy installation.
- Essential for Maintenance: Simplifies pool upkeep by supporting optimal pump function and extending system longevity.
- (1) Impeller
- Pentair WhisperFlo 1 Horsepower Impeller for Full Rated Models: WFE-4, WF-4, WFK-4 and WFDS-4
- Pentair WhisperFlo 1.5 Horsepower Impeller for Up Rated Models: WFE-26, WF-26 and WFDS-26




