Waterway 3421821-1A Executive 48-Frame 4-1/2HP Dual-Speed Spa Pump, 2in. Intake, 2in. Discharge, 230V

SKU: 3421821-1A
Waterway Executive 48-Frame 4-1/2HP 2SP Dual-Speed Spa Pump
Regular Price: $389.99
Availability: In Stock
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About the Waterway 3421821-1A
The Executive 48 is thermally protected to extend the life expectancy of the motor and a highly versatile wet end

Spa Pump Features:

  • Executive wet end designed specifically for 48-frame motors
  • Large 2" intake for improved flow performance and reduced noise
  • Large 6-1/2" diameter wet end for higher head pressure
  • Thermally protected to extend life expectancy of motor
  • Highly versatile wet end can be rotated every 90
  • Viton seals
  • Allied SKU: 1-00-0189
  • Dimensions (H x W x L): 8.34" x 8.13" x 11.98"

More Information

The Executive 48 is thermally protected to extend the life expectancy of the motor and a highly versatile wet end with a large 6-1/2"diameter that can be rotated 90 degrees. It is specifically designed for 48 frame motors and has a 4.5 HP rating with 230 volts. The Executive has a two year warranty on the motor and a 3 year warranty on the wet end.

Center vs. Side Discharge Pumps
Swimming pool and spa pumps are classified, in part, according to the orientation of their discharge openings. Center discharge pumps have an opening located in the center of the wet end, while side discharge pumps have an opening located on the side of the wet end. Water is propelled through the openings and flows out through the jets in your spa. Side discharge pumps are up to 60% more efficient for pumping out high volumes of water than center discharge pumps.

What the frame size on a spa pump mean?
The frame size on a spa pump is the physical size of the spa pump motor. The frame is the piece that mounts the wet end to the motor. The frame size is located on the motor's ID plate, usually marked with an F for frame size. The thru-bolt spacing is also an indicator of frame size. A 48 frame motor has bolts spaced less than 4 inches apart, and the 56 frame motor has bolts with spacing more than 4 inches apart.

Determining Your Pipe Size
In order to determine the correct plumbing size for replacing your spa pump you'll need to first remove your existing pump's unions. Next, measure the outside diameter (O.D.) or the intake suction port. The intake suction port is larger than the fitting size. This will tell you which pipe size is most suitable for replacing your spa pump.

Waterway 3421821-1A Specifications



Product Reviews
Average Rating:
5 average based on 4 reviews
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Tim L. said:
Location: Breckenridge, Colorado
No Problems
8 months ago
I ordered a replacement pump, it arrived a day earlier than expected, I installed it and it worked perfectly right out of the box. That's what I like - an uneventful transaction!
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Jay said:
Location: Westlake Village
Fast Delivery
11 months ago
I was very impressed when the spa pumped arrived within 2 days and the shipping/sales tax were not charged. Fantastic all around.
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Greg said:
Location: Portland Oregon
Great pump and company!
1 year ago
Easy purchase. Very quick response and delivery. Definately would recommend this company. The pump works great.
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JZ said:
Location: Melbourne, fl
great service
1 year ago
Great service, price and free speedy delivery. Thanks
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