This part is a Heater Complete with the Sensor set and built in pressure switch an exact generic replacement for the original Watkins No Fault 4000 76228 heater...
This is a generic replacement for the various versions of Watkins/Hot Spring/Tiger River/Hot Spot/Caldera OEM Heaters. Also for the Laing Tri-bend heater. This heater includes 2 sensors with new style 4-pin sensor plugs (2002+) and an auto-reset high limit as well as a built in pressure switch with cable, sensor adapters and tubing to help connect drain line if needed.
This universal replacement heater contains a pressure switch which is not used on all Watkins models. If your heater has a gray wire coming out of the back or side of it with a small white connector that plugs to your circuit board, then you have a pressure switch. If not see below for our versions without a pressure switch.
We have this heater in the higher 6.0 KW version here: Watkins Hotspring Tiger River, Heater with Sensors, Pressure Switch, Low Flow, No Fault 6000, 230v, 6.0kW, Generic
Note: If you are installing this heater in a pre-2002 tub you will use the included adapters to convert the new sensor plugs to the old style
| Heater Application | Watkins Generic Replacement |
| Kilowatts | 1.0kW, 4.0kW |
| Low Flow Heater Assy Style | Stainless Steel |
| Heater Inlet Size | 3/4" |
| Heater Inlet Type | Barb (b) |
| Heater Outlet Size | 3/4" |
| Heater Outlet Type | Barb (b) |
Below is a list of related parts click on the links for each part:
No Fault Heater Manifold Kit, Watkins Double Barrel Heaters, HotSpring, Tiger River
No Fault Heater Gasket Kit, Watkins Double Barrel Heaters, HotSpring, Tiger River
No Fault Heater Barb Kit, Watkins Double Barrel Heaters, HotSpring, Tiger River
Generic No Fault 4000, Watkins Hotspring Tiger River, Heater with Sensors, Low Flow, 230v, 4.0kW
Generic No Fault 6000, Watkins Hotspring Tiger River, Heater with Sensors, Low Flow, 230v, 6.0kW
Sensor Kit, Hotspring, Tiger River, Caldera, Watkins Hi-Limit & Temp, with O-Rings, New Style 2002+
Pump, Laing, Circulation, Series E5, 115v/230v, 3/4"b, Watkins , Hotspring, Tiger River, Limelight
