Used on all 1995 to Current 220/230 Volt "High Performance" model HotSpring & Tiger River, and Limelight spas. This heater is INDEED the Watkins Titanium heating element. Plumbing of spas manufactured between 1997 and current will have NO issues realigning the plumbing of the old unit with this new one.
We also recommend that when you are switching out this unit, regardless of year, to replace the Control Stat Thermistor (PN 38415 or 39530) and the Hi-Limit Thermistor (PN 38416 or 39525). It is easier to do it now, while you have the spa apart than to do it down the road. We list these items in our store (Parts Category). 38416 Hi-Limit and 38415 Control. 39525 Hi-Limit and 39530 Control. Let us know what year, model, and serial number your spa is at time of inquiry. Your spa serial number is typically on a decal on the inside wall (inside component cabinet) of the spa. All parts from Mountain Spa Guys are BRAND NEW, from factory. What's Included: No-Fault PDR 4kw Titanium Heater, 1' of 3/4" vinyl tubing, 3/4" Clamps & Thermistor O-rings, Instructions. Additional Parts (mentioned above in description) are also in our Store if you need them. #38416 Hi-Limit Thermistor (1995 - 2001) 39525 (2002-Current). On ORDERS of any TWO (2) Items Totaling. Subscribers to our store and receive "Private Subscriber Discounts" news-blasts. Let us know if you need product overseas or across borders. We'll see what we can do (no chemicals sales internationally -- only parts, accessories, miscellaneous)! These are the buyers responsibility. We aim to please our goal is to get you back in hot water, enjoying your spa! The item "HotSpring, Tiger River, Limelight Spas 4 KW NO FAULT HEATER by Watkins" is in sale since Wednesday, April 26, 2017. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Spas & Hot Tubs".The seller is "spaguys247" and is located in Prescott, Arizona. This item can be shipped to United States, Canada.