Balboa VS510SZ Retrofit Kit

This is a comprehensive upgrade package. It comes with the main control box, the 5.5kW heater unit, the topside control panel with its overlay, and all the necessary cords to connect your existing equipment.

This system is designed for 2-inch plumbing connections. Before purchasing, verify that your existing spa plumbing matches this diameter to ensure a proper fit.

The system is versatile enough to manage a primary pump, a secondary pump, a blower, your spa lighting, and an ozonator. It effectively centralizes control for all these core functions.

Balboa's patented M7 technology uses sensors at both ends of the heater to monitor water flow and temperature more accurately. This helps prevent dry-fire situations and improves overall system safety and longevity.

While the kit is designed to be straightforward, it involves electrical wiring for a 240V system. If you are not comfortable or experienced with high-voltage electrical work, we strongly recommend hiring a licensed spa technician to ensure the installation is safe and code-compliant.