Hydro Quip Control System, HQBP501U, 4.0KW HTR, (NO Topside or Cords), 59372

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In stock

Hydro Quip Control System HQBP501U, Wifi Enabled. OEM part numbers are 59372 and 51-59372-E-K.

This controller operates on 220V 60Hz (220V requires 4-wire service, Neutral is Required). The HQBP501U control system is equipped with Balboa Water Group's patented M7 technology which allows the heater to be mounted either on the suction or discharge side of the pump for simplified installation. M7 Technology also completely eliminates the pressure switch which otherwise requires occasional manual adjustment making the HQBP501U an ideal choice if a pressure switch is not necessary on your spa configuration.

Field Configuration is required by your installer. This includes set-up of Internal component circuits, Dip Switches and Program Setting to work with your existing topside, pumps, blower (or pump 3), ozone, and power supply.


SpaGuts OEM P/N: 11-150-9372


  • Hydro Quip HQBP501U Spa Control System, 59372
  • Wifi Enabled (Wifi Module sold separately)
  • Pump 1 circuit, 2 speed, 110/220V, 12A Max
  • Pump 2 circuit, 1 or 2 speed, 110/220V, 12A Max
  • Blower or Pump 3 circuit, 1 speed, 110/220V, 12A Max
  • Ozone circuit, 110/220V, 1A Max
  • Audio/Video circuit, 110/220V, 2A Max (Constant Circuit)
  • 12V 12W Light circuit, 1A Max
  • 4.0KW, 240V Flo-Thru High Flow heater with M7 technology
  • 800 Incoloy heater element
  • Stainless steel 304 Grade heater housing
  • No Pressure Switch. Heater can be installed on suction or discharge side of pump
  • Quick Disconnect Heater Cable
  • UL Recognized for your safety
  • Freeze protection
  • High-limit protection
  • Filtration mode
  • Economy Mode
  • Tech Book (Only Available Online. See Tabs Above)
  • 1-Year Limited Warranty (Extended Warranty Option is available upon ordering)

Dimensions (Approx.):

  • Controller: 12.64 inch L x 10.56 inch H x 4.8 inch W
  • Heater: 15 inch L x 2 inch Diameter

WIFI Optional (Sold Separately):

  • iPhone App! Control your spa from your iPhone, iPad, or iPod!

Add the optional Balboa Wi-Fi Module, 50350, download one of the iPhone Apps, and use your iPhone, iPad, iPod or computer to control your Hydro Quip HQBP501U Model Controller remotely! Also works with Android! The Hydro Quip HQBP501U Model Controller are pre-program with the software capable of WIFI control. Imagine the possibility of being able to monitor your spa and control it remotely within your wifi network with the Home App, or do it all remotely from across country with the World App using the internet. Basically Amazing!!!


  • (*iPhone, iPad, iPod and computer are not included)

This control system is also a replacement option for the following part numbers: HQBP501U, BP501G13, 54830, 56583 BP501G3 (This system has an 825 Incoloy Heater), 56583 BP501G3 (This system has a Titanium Heater), Maax 110339, 50-54835-Z, 56725-01(FW501G3)

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