Some years ago Watkins discontinued the No Fault heaters made of plastic. If you have a 95-2000 Hot Springs and you heater goes out --you have only the one choice. The new PDR unit --see the web site - these can be retro fitted into any of the earlier Hot Springs and Tiger River spas . You should consider changing the thermistors as well --there are two. If you have a 95 or 96 model year you may also want the install kit as it has tubing and electrical connection you will find handy. We generally stock the 6kw model because it can be used on the 120v spas as well .
If your facing this upgrade we have done dozens and dozens of these -we can help you dont panic its not that bad.
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