Balboa VS100 10" 4.0kW Flo-Thru Heater (26-58203-K) prostar Matching the original connection style

Matching the original connection style often helps make the replacement more straightforward and less disruptive

this Waterway volute is a practical replacement when the main water-directing housing needs to be renewed

which is critical for reducing leakage and maintaining dependable pump operation

That means a cleaner replacement path and fewer compromises during installation

the CL220 helps deliver sanitizer gradually as water moves through the system

Balboa VS100 10" 4.0kW Flo-Thru Heater (26-58203-K) prostar Matching the original connection styleBalboa VS100 10" 4. 0kW Flo Thru Heater (26 58203 K) is a compact replacement heater designed for compatible VS100 spa control applications. Its shorter 10" body distinguishes it from the more common 15" heater format, making physical dimensions especially important when identifying the correct replacement for the existing plumbing layout. The VS100 application uses a compact equipment arrangement, making heater length and plumbing fit especially