Amazon.com: hot springs spaWatkins No-Fault Hot Tub Heater for Hot Spring spas.
Premium double barrel lo-flow heating assembly with titanium element and installed sensorsDon't use old sensors again.There is a replacement for the Watkins No-Fault® heater.The auto reset was done by the PDR.Installation is easy with the Bleed Tube Extension Kit.You can't buy a better quality spa at a lower price.
There are product notes for the 2002 and newer model year.The set converts the Molex connections to larger AMP style for pre-2002 models.A third grey wire is used for the on-board pressure switch.Also replaces trumpet-style Laing Infinity 7211.The warranty is one year.