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Waterway Executive 56 Frame 2 Speed Spa Pump 4 HP 230V 3721621-1D
Waterway Executive 56 Frame 2 Speed Spa Pump 4 HP 230V 3721621-1D
The Waterway Executive 56-Frame 4HP Dual-Speed Spa Pump delivers powerful, efficient, and quiet performance with a durable, long-lasting design.
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Upgrade your spa experience with the Waterway Executive 56-Frame Spa Pump (3721621-1D)—a powerful, 4HP dual-speed pump designed for efficient, quiet, and long-lasting performance.
Featuring a 56-frame motor for improved cooling and durability, this genuine Waterway pump is built to last.
With a large 2" intake and discharge, a rotatable wet end, and energy-efficient components, it ensures optimal water flow while extending the lifespan of your spa system.

⭐⭐⭐⭐⭐
Customers love the 4HP dual-speed performance, which provides excellent water circulation and jet power.
Many reviewers highlight the low noise operation and energy savings with its efficient motor.
With its 56-frame design, rotatable wet end, and Viton seals, this pump holds up well over time.
Users appreciate the straightforward setup and adjustable wet end for a perfect fit.
Compared to similar spa pumps, this genuine Waterway product offers top-tier performance at a reasonable price.

- Powerful 4HP Dual-Speed Motor – Switch between high speed for jet power and low speed for energy-efficient circulation.
- 56-Frame Construction – Runs cooler, enhancing motor longevity and performance.
- Large 2” Intake & Discharge – Maximizes water flow for improved efficiency.
- Rotatable Wet End – Easily adjust positioning in 90-degree increments for versatile installation.
- Viton Seals & Double-Shielded Ball Bearings – Designed for durability and leak resistance.
- Split Capacitor Design – Reduces energy consumption while maintaining performance.
- Quiet Operation – Engineered to minimize noise for a relaxing spa experience.
- Genuine Waterway Product – Ensures quality, compatibility, and reliability.

- Brand: Waterway
- Amps High Speed: 12
- Shipping Dimensions: 20 x 11 x 11 inch
- Amps Low Speed: 4.4
- Application: Pool
- Each Product Weight: 43.6 pounds
- Frequency Rating (Hz): 60
- Green or Energy Efficient Product: True
- Horsepower: 4 HP
- Master Carton Quantity: 1
- Minimum Sell Quantity: 1
- Motor Speed: 2-Speed
- Pallet Quantity: 1
- RPMs Max: 3450
- RPMs Min: 3450
- Voltage: 230V
- UPC Code: 806105077462


Q: Will this pump fit my spa?
A: This pump features a 56-frame design with a 2” intake and discharge, which fits most spa systems. However, always verify compatibility with your existing setup before purchase.
Q: Is this pump energy-efficient?
A: Yes! The split capacitor design minimizes energy consumption, and the dual-speed motor allows you to run it on low speed for circulation, saving electricity.
Q: How quiet is this pump?
A: The Executive 56 is engineered for quiet operation, using double-shielded ball bearings and a cooler-running motor to reduce noise and extend lifespan.





Pool pumps are non-returnable once wired, plumbed, or run. Please verify all specifications before installation or use.

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Waterway is a trusted name in pool and spa equipment, offering dependable pumps, filters, jets, and plumbing components engineered for lasting performance. Whether you're building new or replacing parts, Waterway products are designed to keep your system running efficiently. At AquaDoc, we stock a wide selection of Waterway pool and spa supplies to support smooth operation and easy maintenance.
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