Balboa Watkins Caldera 4.0kW 230V Low Flow Heater 74912Balboa Watkins Caldera 4. 0kW 230V Low Flow Heater Part #74912 Hydro Quip C3473 1 Upgrade or replace your spa heating system with the Balboa Watkins Caldera 4. 0kW 230V Low Flow Heater, designed for reliability and performance in select Watkins and Caldera hot tubs. Powerful 4. 0kW Output Efficiently heats spa water for comfortable soaking year round Low Flow Design Optimized for spas requiring lower flow rates, reducing energy usage and ensuring
Shopping security
Each payment you make on thelockerguy is secured with strict SSL encryption and PCI DSS data protection protocols
Upgrade or replace your spa heating system with the Balboa Watkins Caldera 4.0kW 230V Low Flow Heater, designed for reliability and performance in select Watkins and Caldera hot tubs.
Powerful 4.0kW Output – Efficiently heats spa water for comfortable soaking year-round
Low Flow Design – Optimized for spas requiring lower flow rates, reducing energy usage and ensuring compatibility with circulation pumps
Direct Replacement for: Balboa 74912, Hydro-Quip C3473-1, Watkins/Caldera 74912
Voltage: 230V
Application: Compatible with many Watkins and Caldera spa models (verify fitment with your model or consult your spa manual)
Stainless Steel Housing – Durable construction for extended lifespan and corrosion resistance
Includes mounting hardware and pressure switch for straightforward installation
Installation & Usage:
Disconnect power before servicing your spa
Remove old heater and install new unit following manufacturer instructions
Ensure all water connections are secure and there are no leaks before restoring power
For optimal safety and performance, installation by a qualified spa technician is recommended
Why Choose This Heater?
Genuine OEM replacement for dependable operation
Perfect fit for many Caldera and Watkins spas
Quick heat-up times and low flow compatibility
🛁 Restore your spa’s heating power with this reliable 4.0kW low flow heater from Balboa and Hydro-Quip.
Always verify compatibility with your spa model before ordering.