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Master Spa – Heaters and Replacement Parts

As the #1 supplier of Master Spa replacement parts, we have a huge selection of original OEM Master Spa heaters and hot tub heater replacement parts, including Master Spa heaters, Master Spa heater straps, Master Spa temperature sensors, and more. Most orders ship same day, and we offer free shipping on all orders over $99 in the U.S. If you are unsure about which heater part you need for your spa, compare the first five numbers on your heater (located under the barcode) to the V/N number on our website.

If you need additional assistance, you can always call our Customer Service team at (855) 308-2149. We’re happy to help!

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    This 5.5 kW heater that is easily installable so you can get back to enjoying your heated swim spa or hot tub in no time at all. 

    **REMOVING THE PLUG N CLICK OR EYELET CABLE FROM THE HEATER WILL VOID THE MANUFACTURES WARRANTY**

    5.5 kW Heater w/ Cord
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      5.5 kW Heater with cord and 3rd Sensor

      5.5 kW Heater w/ 3rd Sensor and Cord
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      The X801773 Master Spas Hot Tub Part Heater is a durable, high-performance replacement heater designed for Master Spas hot tubs. Built to withstand constant exposure to water and heat, it ensures efficient and reliable temperature control for your spa. Easy to install, this heater provides long-lasting, consistent heating performance for a comfortable and enjoyable hot tub experience.

      Gecko 4.0 kW F/YE Heater Replacement
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      The Spa Dragon is a patented monitoring system with thermal backup protection that prevents freeze damage caused by equipment failure. Stay worry-free in winter, with real-time alerts and automatic heating activation—no matter where you are.

      The Spa Dragon
      $399.99
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