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Waterway Executive Pump 56F 4HP 2 Speed 2"/2"

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Waterway Executive Pump 56F 4HP 2 Speed  2", #3721621-1D

  • 4 HP Waterway Executive 56 Hot Tub Pump
  • Waterway OEM Part # 3721621-1D
  • 2.0" Intake and 2" Discharge
  • Wet end can be rotated 90 degrees
  • High Speed 12.0 Amps (3450 RPM)
  • Low Speed 4.4 Amps (1725 RPM)
  • New Cord not included, sold separately if required
  • Additional barb fitting maybe required in place of drain plug. Part # 672-4350

The 4 HP Waterway Executive 56 # 3721621-1D is a durable high performance pump that delivers reliable water flow efficiently. Always select a replacement pump with the same part number as the Waterway part number.  

One (1) Year Limited Warranty on Product, see Owner's Manual for a full description of warranty claims and coverage details. Warranty to be registered by homeowner


  • 5

    Posted by Patrick on 20th Sep 2021

    Easy to hook up and quiet as well

  • 5
    fast shipping and good price !

    Posted by Alexandre Bosiacki on 10th Aug 2021

    my Spa works like new !! thanks !

  • 4
    Replacement pump for sunrise spa.

    Posted by James Smith on 30th Apr 2021

    Perfect fit. Talked directly with a someone to double check before ordering. Was very helpful.
    Delivered in two days to my door.
    Only issue was the bracket was bent to affix motor. Was an easy enough adjustment.

  • 5

    Posted by Paul J Guerriero on 19th Apr 2021

    This pump was $200 more everywhere else I looked.

  • 5
    as shown

    Posted by Robert Kaufmann on 31st Mar 2021

    Received product within 24 hours. Was the exact fit. Hot tub up and running in about an hour.

  • 5
    Just Awesome

    Posted by Kevin on 4th Feb 2021

    Good price. Works well. Ordered 1 day and received the next. Couldn't ask for a quicker turn around!!

  • 5
    Perfect Fit

    Posted by Mike T. on 13th Dec 2020

    Tech on the phone helped me through the correct motor choice.
    This was a replacement motor for the original Gecko I had in my hot tub. It fit perfectly, runs cool and quiet.

  • 5
    Great pump & service

    Posted by Mark on 22nd Nov 2020

    Had to make a small adjustment to the spa pack as this pump was a touch wider than the Gecko pump I had, but overall works perfectly. Gentleman I spoke to on the phone was very friendly and helpful. Highly recommend Canada Hot Tub Parts.

  • 5

    Posted by Unknown on 10th Nov 2020

    I was in a pinch as we lost our second pump on the hot tub. With colder temps around the corner I was worried about sitting water in the manifolds (just replaced). I received the pump 2 days after ordering!!!

    Extremely happy withy experience with Canada Hot Tub Parts. Thank you!!!