Balboa Water Group
Balboa Water Group BP Series 4.0kW Flo-Thru Spa Heater | 26-58303-K
Balboa Water Group BP Series 4.0kW Flo-Thru Spa Heater | 26-58303-K
This item qualifies for free ground shipping.
In-stock orders usually leave in 1 to 2 business days, and faster delivery options appear at checkout.
Manuals, spec sheets and warranty for Balboa Water Group


4.0kW flow-thru spa heater for Balboa BP Series systems
A 15 inch, 4.0kW flow-through heater assembly for compatible Balboa BP Series spa control systems.
Bring back the heat with this Balboa BP Series 4.0kW flow-through spa heater, part 26-58303-K. It is a 15 inch by 2 inch heater, so match the wattage and length to your old one. Questions? Call 631-678-6506.
How to choose and fit the BP Series 4.0kW Flo-Thru Spa Heater
Read the kW rating on your old heater and confirm it says 4.0kW.
Measure the old heater body and confirm it is about 15 inches long and 2 inches across.
Check that your spa runs a Balboa BP Series control, then call 631-678-6506 if the old label is unreadable.
Works on
BP Series 4.0kW Flo-Thru Spa Heater questions and answers
What size and wattage is it?
It is a 4.0kW flow-through heater listed at 15 inches by 2 inches.
Can I swap in a 5.5kW heater instead?
Match the wattage of the heater your spa was built with. Call 631-678-6506 if you are thinking of changing it.
Is it in stock?
Stock changes often. If it shows as unavailable, call 631-678-6506 and we will check.
Will it fit my spa?
Confirm the part number and size against your current part, or call 631-678-6506 and we will help you check before you order.
What does the photo show?
The photo shows the Balboa Water Group logo, not the part itself. Call 631-678-6506 and we will help you match the part number 26-58303-K before you order.
