Balboa Caldera/Watkins 4kW 240V Low Flow Trombone Heater C3473-1
The 4kW Caldera Low Flow Trombone Heater is a high-performance replacement heater designed for Caldera and Watkins hot tubs with lower water circulation. Its trombone-style design allows for efficient water heating, even in spas that experience reduced flow, making it ideal for models like the Caldera Utopia and Paradise Series. The flow switch and hi-limit sensor enhance safety by ensuring the heater operates within optimal conditions. Additionally, it features a 4kW at 240V heating element and comes with 3/4" hose barb connections for a secure plumbing setup and a 40" pigtail cord for flexible installation.
Alternate Part Numbers:
26-3473-1-5T-K (HydroQuip)
74912 (Watkins)
SEH-4300-NHW (Laing)
| Product Name | Caldera/Watkins 4kW 240V Low Flow Trombone Heater |
| Manufacturer Part Number | C3473-1 |
| Sku | HTAC34731 |
California Proposition 65 Warning
WARNING: This product contains chemicals known to the state of California to cause cancer and birth defects or other reproductive harm. For more information: www.p65Warnings.ca.gov