4.0KW 240V No-Fault Double-Barrel Heater Assembly 73791
$558.79
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Description
4.0KW 240V No-Fault Double-Barrel Heater Assembly 73791
aqua shield parts Plus is an authorized distributor of Hot Spring® Spas, providing genuine OEM replacement parts.
The Watkins 73791 is a 4kW / 1kW double-barrel, low-flow “No-Fault” hot tub heater assembly designed for 1995-present Hot Spring, Tiger River, Limelight, and Caldera spa models. It features a durable titanium element, dual sensors, and Power Down Auto Reset (PDR) high-limit safety protection.
Technical Specifications
- Power Output: 4kW at 240V / 1kW at 120V
- Amperage: 16.6A (240V) / 8.3A (120V)
- Flow Rate Required: Minimum 8 GPM
- Element Material: Titanium
- Connections: 3/4-inch barbed fittings
- Double-Barrel Design: Provides uniform and efficient low-flow heat staging.
- Safety Control: Built-in auto-reset high-limit protection.
- Included Components: Comes equipped with dual sensors, a power cord, tubing, and installation clamps.









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