The Spa Components 4.0 kW flo-thru heater is designed for compatible 2 inch by 15 inch applications associated with Brett and Caldera-style systems. Flo-thru heaters are useful because they provide direct in-line heating while preserving the intended plumbing layout of the spa system.This replacement is especially useful when the original heater has failed electrically, is no longer heating consistently, or has reached the point where a full heater replacement is more practical than continued repair. Matching the correct size and compatible application style helps keep installation cleaner and more predictable.It is a strong service option when dependable heat restoration is part of returning the spa to proper operating condition. Spa Components 4.0 kW flo-thru heater Compatible 2 inch by 15 inch heater format Designed for supported Brett and Caldera-style applications Useful when the original heater no longer performs reliably Supports dependable heat restoration and cleaner installation
![Spa Components 4.0 kW [15" x 2"] FloThru Heater [PS/SI Brett/Caldera] (B24040S)](https://cdn.shopify.com/s/files/1/1751/9347/products/46-371-1210_xl.jpg?v=1706890130&width=480)
