Description
Balboa C3473-1 Watkins/Caldera Low Flow Heater – 4.0kW 230V
Product Overview
As a retailer of hot tub spa equipment, I’m featuring the Balboa C3473-1 Low Flow heater, a specialized 4.0kW heating solution designed specifically for Watkins and Caldera spa systems. This trombone-style unit features dual heating elements and comprehensive monitoring capabilities.
Key Features
- Professional 4.0kW dual element
- 230V operation
- Low flow design
- U-Bend/Trombone style
- 46-1/2″ pressure switch cord
- 24″ pigtail cord
- 17-3/4″ overall length
- Off-angle box configuration
Technical Specifications
| Specification | Detail |
|---|---|
| Model Number | C3473-1 |
| Heater Power | 4.0kW |
| Voltage | 230V |
| Length | 17-3/4 inches |
| Inlet/Outlet Size | 2 inches |
| Type | Low Flow |
| Design | U-Bend/Trombone |
| Features | Dual Element, Pressure Switch |
Installation Features
- Complete assembly design
- Extended pressure switch cord
- Barb fitting connections
- Off-angle box mounting
- Professional configuration
- System-specific design
- Direct replacement capability
Applications
Specifically designed for:
- Watkins spa systems
- Caldera spa models
- Low-flow configurations
- Professional installations
- Direct replacements
- System restorations
- Premium applications
Performance Features
- Dual element heating
- Low-flow optimization
- Pressure monitoring
- Efficient heat transfer
- Reliable operation
- Consistent performance
Quality Construction
Built to professional standards:
- Dual heating elements
- Premium components
- System-specific design
- Professional-grade materials
- Extended durability
Alternate Part Numbers
- 2-00-0020
- 74912 (Watkins)
- SEH-4300-NHW (Laing)
- 6595
- 6596 (Laing)
- 26-3473-1-5T-K (HydroQuip)
- 46-238-1064
- IHH-4300-NHW-7340
- SEH-4300-NHW-6596
- 26-3473








