BATH TUB HEATERS ARE A AID IN MAINTAINING WATER TEMPERATURE AFTER HOT WATER IS IN THE TUB. NOT AS A HEATER FOR COLD WATER IN THE TUB.
The part number PH100-15UP is a 1.5kW, 120V "T-Style" pressure-activated bath heater from the Pure Heat series by Hydro-Quip.
Because it is a "universal" design meant to mount directly onto a 1.5" pump union, it is widely used as a replacement part across many jetted bathtub brands rather than a proprietary hot tub component.
Manufacturers & Compatibility
The following brands and replacement categories utilize the PH100-15UP:
Jacuzzi: Frequently used as a direct replacement for various Jacuzzi Whirlpool Bath heater models, including part numbers
90-221107P, 90-223105P, and 90-223107P.
Cal Spas: Sold by specialized retailers as a genuine replacement part for specific models requiring a T-style 1.5kW heater.
HydraBaths: Specifically designed to replace the Hydraheat TPH15-1C model.
American Standard: Commonly cross-referenced as a compatible alternative for their whirlpool tub heater configurations.
GG Industries: Replaces several GG-branded heaters, including parts H921123 and 93211-21.
Sundance Spas: Used in some bath-style or small specialized units within their legacy lines.
