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.
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3420820-1A | Waterway 2HP Executive Spa Pump 2 Speed
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CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
The Waterway 3420820‑1A Executive Spa Pump 2HP 2 Speed is engineered for robust performance in spa and hot tub applications. Featuring a 2 HP dual-speed motor (3450 RPM high / 1725 RPM low) and a generous 6.5-inch diameter wet end, this pump delivers strong flow and pressure while allowing versatile plumbing configurations thanks to its rotatable wet end design. The 48-frame motor is thermally protected and built for durability, making it an ideal choice for installations requiring 2″ inlet and discharge ports. Backed by the reputation of Waterway, this pump line is designed for trouble-free operation, long life, and dependable service in spa environments.
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Dual-Speed Motor: Offers both high and low speeds (3450/1725 RPM) for flexible performance and potential energy savings when full power isn’t required.
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2″ Intake & Discharge Ports: Large 2-inch plumbing connections (3″ male buttress thread) streamline installation and support higher flow rates.
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Rotatable Wet End Design: The pump’s wet end can be clocked in 90° increments, simplifying alignment with existing plumbing and reducing installation time.
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Thermally Protected Motor: Built in thermal overload protection helps safeguard against overheating and enhances overall product longevity.
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High Head Pressure Wet End: Designed with a large diameter impeller housing for superior head pressure capability, which is beneficial for jets and elevated plumbing runs.