Waterway Executive 5 HP two speed 56 frame 230 volt spa pump, part 3722021-1DWaterway Executive 5 HP 2 Speed 2" 56 Frame 230 Volt Pump, 3722021-1D In stock$45199
Waterway Executive 5 HP two speed 56 frame 230 volt spa pump, part 3722021-1D
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Waterway Executive 5 HP 2 Speed 2" 56 Frame 230 Volt Pump, 3722021-1D

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$45199
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Quick overview

  • Two speed Low speed for circulation and filtering, high speed when the jets are called for.
  • 56 frame The heavier 56 frame motor rather than the lighter 48 frame.
  • 2 inch plumbing 2 inch intake and 2 inch discharge, the common size on full size spa systems.
  • 230/240 volt Draws 16.4 amps on high and 4.8 amps on low.
  • Executive series Waterway Executive, the 5 HP rating in this family.
  • Also listed as PF-50-2N22C The same pump is referenced under that number, useful when cross checking an old label.
Full description and specifications ↓

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Product details

The Waterway Executive 3722021-1D is a 5 HP two speed spa pump on a 56 frame motor, plumbed 2 inch on both the intake and the discharge and wired for 230/240 volts. It draws 16.4 amps on high speed and 4.8 amps on low.

Why two speeds

A single speed pump runs flat out whether the spa is filtering or in use. Two speeds split that job: the low speed turns the water over quietly and cheaply through the filter cycle, and the high speed is there when the jets are on. On a system plumbed for it, that is the difference between a pump that runs all day and a power bill that does the same.

Sizing and fit

This is the 56 frame version, which is the heavier motor frame, and it is a 2 inch by 2 inch pump. Check the frame size, the port sizes and the voltage on the pump you are replacing before ordering, because 48 frame and 56 frame units do not swap freely on a spa base.

Cross reference

The pump is also referenced as PF-50-2N22C. If that is the number on the old label, compare the voltage, amperage and port sizes here against it.

Specifications
Brand Waterway
Manufacturer part number 3722021-1D
UPC 806105078711
Alternate part number PF-50-2N22C
Series Executive
Type Dual speed spa pump
Horsepower 5 HP
Speeds 2 speed
Frame 56 frame
Intake 2 in.
Discharge 2 in.
Voltage 230/240V
Amperage 16.4/4.8 amps
Shipping weight 28 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

What voltage does this pump run on?
230/240V. It draws 16.4 amps on high speed and 4.8 amps on low.
What size are the connections?
2 inch intake and 2 inch discharge.
Is this a 48 frame or a 56 frame pump?
56 frame. The two are not interchangeable on a spa base without checking the mounting and shaft, so confirm what is in the equipment bay before ordering.
I have a label reading PF-50-2N22C. Is this the right pump?
That number is listed alongside Waterway part 3722021-1D for this pump, so it is worth comparing against the rest of your old label, particularly the voltage and the port sizes.
Ask your own question