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SpaGuts T-Style Bath Heater Kit, Universal, Pressure, 1.5KW 110V, 7.0 in. x 1.5 in.


SpaGuts T-Style Bath Heater Kit, Universal, Pressure, 1.5KW 110V, 7.0 in. x 1.5 in.

SpaGuts brand T-Style bathtub heater, 1.5KW 110V. This is the 7.0 x 1.5 inch T-Style bathtub heater, which are universal and designed to be installed on the pressure side of the bathtub pump.

This bath heater is normally meant for use on 1.5 inch plumbing, but can also be used on 1.0 inch and 0.75 inch plumbing when using the fittings that are provided. Inside diameter is approximately 2.375 inch for the black heater split nuts.

SpaGuts P/N: 25-150-0003


  • Stainless steel 7.0" x 1.5" T-style heater
  • 1.5kw Incoloy heater element
  • Built-in pressure switch to activate heating
  • Automatic smart thermostat (104 degrees F limit)
  • Reversible mounting
  • Heater on light
  • Hi-limit protection
  • Includes 1.5", 1.0" and 3/4" fittings
  • 110V 3ft NEMA cord
  • Complete Installation Instructions
  • 2-year limited warranty
  • UL Recognized for safety standards

*NOTE that dimensions are approximate.

NOTE 1: If this bath heater is being installed directly on top of the pump discharge, make sure the outside thread diameter of the pump is approximately 2-3/8 inch (2.375 inch). The split nuts on this bath heater has an inside thread diameter of approximately 2-3/8 inch (2.375 inch), which is standard for 1.5 inch fittings. If the existing pump have different size threaded fittings, replumbing is required for any of our Bath Heaters.

Click to view Installation Diagram.

The Pressure Switch T-Style model bath heater is also a replacement option for the following bath heaters: SG100-15UP, PH100-15UP, 46-355-1033, 46-355-1030 or PH100-A (1.0KW), 2-00-7514, CT100-BLP-ET, CT100, CFB8PP1-D012JUZ, 931211-20, 931211+20, 25-175-1211, GG931211+20, 12-784-7430, 2-00-5009, 935211-21, 2-00-0027, D1150-1302-G, Kholer 1219652, Hydroquip CFB8PP8-8001AU0 (1.0KW), 12-784-4430S (replumbing needed)

This bath heater is also a replacement option for the following brand bath heaters: American Standard, Safe-T-Heater, Hydro-Quip Compact Series Whirlpool Bath Heater, Jacuzzi RapidHeat, Pure Heat

The use of a SpaGuts brand bath heater helps to eliminate the rapid cooling that occurs during the operation of your whirlpool bath, providing you a continuous source of hot water and extending the pleasure of your jetted bath experience. This bath heater is normally for use in jetted bathtubs up to 70 gallons. For more information, please see Installation Instructions in the installation tab above. For larger bathtubs and specific heater size requirements, refer to your jetted bathtub manufacturer for their recommendation.

NOTE: This bath heater is designed to maintain the current bath water temperature in the tub, and is not meant to heat water from cold to hot.


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See Installation Instructions.


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Support: Bath Heater not working

Support: Heat rise for whirlpool jetted bathtub heaters.

Support: What is the maximum water temperature the bathtub heater will heat up to?

What is the maximum water volume a SpaGuts bathtub heater can handle?

What is the minimum water level requirement inside the jetted bathtub prior to activating the bath pump and bath heater?

What is the purpose of the bathtub heater, and what is the minimum water temperature requirement prior to activating the bath heater?

Will your bathtub heaters work on soaking tubs that do not have jets?