Balboa M7 Flo-Thru Spa Heater 5.5kW [230v] [2" x 15"] W/O Pressure Switch (50157PLG)

Balboa Water Group Spa Replacement Heater 

The 50157PLG spa replacement heater is specially designed by Balboa Water Group and is one of the most popular models of replacement heaters. This is a 5.5 kW heater that is compatible with the Balboa systems listed in our product listing. If you have difficulty locating your heater, we suggest that you use our Heater Locator here on our website.

Balboa Spa Replacement Heaters have a revolutionary design that provides additional reliability and ease of installation when compared to conventional spa systems. Through the years, Balboa Water Group (BWG) continues to be leader in the spa heater industry in terms of design, innovation, and reliability. These are highly sought after qualities when choosing the right product for your spa and for your family. We also carry the largest selection of spa heaters in the industry. Whether you are replacing your spa heater on an older spa system with pressure switch technology or whether you are replacing a spa heater with Balboa's modern M7 patented technology, we have the right solution for you. That is what makes us the leader in the spa industry for more than 30 years!


Balboa Control Systems are the most advanced spa controls ever developed. Balboa created the first reliable electronic spa control nearly twenty years ago. By coupling our unique, patented software and design with state-of-the-art materials.

Balboa's cutting-edge product design and commitment to the advancement in technology continues to make us the leader in the spa industry. You can rest assured in knowing that you have the highest quality products available whether you are purchasing a spa replacement heater or have been fortunate to have genuine Balboa Water Group (BWG) products already installed in your hot tub or spa. Bath & Spa Parts Online carries the complete line of Balboa heaters!