Product Description
BP100 4.0kW Flo-Thru Heater Assembly (G4310) for Balboa Spa Pak pb100
Get your hot tub running again with our professionally rebuilt BP100 4.0kW Flo-Thru Heater Assembly. Perfect for Balboa spa paks, this hard-to-find replacement part is expertly refurbished to deliver reliable performance and extend the life of your spa.
Shop and order at Western Tub and Pool
[Call us: 1-855-248-0777] [Email: fixmytub@gmail.com]

reference spa pak with installed bp100 heater
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New available purchase link Bp100 new heater assembly 4 kw
Why choose our rebuilt BP100 heater assembly?
Professionally rebuilt for reliability
Each heater assembly is carefully inspected, tested, and rebuilt to meet original manufacturer specifications, ensuring dependable performance for years to come.
Cost-effective solution
Save significantly compared to buying new while getting the same quality and performance. Our rebuilt units offer exceptional value without compromising on reliability.
Expert support and guidance
Not sure if this is the right part? Our knowledgeable team is here to help. Send us your part number, photos, or hot tub make, model, and serial number—we'll confirm compatibility and get you the right replacement.
Fast shipping and availability
We stock hard-to-find spa parts so you can get your hot tub back up and running quickly. No more waiting weeks for special orders.
Product specifications
Part Number: G4310
Power Output: 4.0kW
Type: Flo-Thru Heater Assembly
Application: Balboa BP100 Spa Pak Systems
Condition: Professionally Rebuilt
Warranty: Contact us for warranty details
Dimensions and Weight:
Contact us at 1-855-248-0777 for complete specifications and technical details.
Compatible hot tub models and control systems
This BP100 4.0kW Flo-Thru Heater Assembly (G4310) is compatible with numerous hot tub brands and Balboa control systems, including:
Compatible control systems:
- Balboa BP100 Series
- Various Balboa digital control panels
- Legacy spa control systems
Popular hot tub brands using this heater:
- Cal Spas
- Hot Spring Spas (select models)
- Sundance Spas (select models)
- Jacuzzi (select models)
- Dynasty Spas
- Master Spas
- And many more
Not sure if this fits your hot tub? Check your existing part number or browse our online catalog. You can also call us at 1-855-248-0777 or email fixmytub@gmail.com with your hot tub's make, model, and serial number for confirmation.
Need help finding the right part?
We specialize in hard-to-find hot tub and spa replacement parts. If you're unsure about compatibility or need assistance identifying the correct component:
- Check your part number - Look for the existing part number on your current heater assembly
- Send us photos - Email clear pictures of your current part to fixmytub@gmail.com
- Provide details - Include your hot tub's make, model, and serial number (usually found on the equipment panel or spa skirt)
Our experienced technicians will review your information and confirm the right replacement part for your specific spa system.
Frequently asked questions
How do I know if this heater assembly will fit my hot tub?
The best way to confirm compatibility is to check your existing part number (G4310) or contact us with your hot tub's make, model, and serial number. Our team will verify fitment before you order.
What does "rebuilt" mean?
Our rebuilt heater assemblies are professionally refurbished units that have been disassembled, inspected, cleaned, and tested to meet original performance standards. All worn components are replaced, ensuring reliable operation.
Do you offer installation support?
While we don't provide on-site installation, our knowledgeable team can guide you through the replacement process or recommend qualified spa technicians in your area.
What if I'm not sure this is the part I need?
No problem! Send us an email at fixmytub@gmail.com with photos of your current heater, your spa's make and model, and serial number. We'll help you identify the correct replacement part.
How quickly can I get this part?
We maintain inventory of hard-to-find spa parts for faster shipping. Contact us at 1-855-248-0777 to check current availability and shipping options.
Can I order other spa parts from you?
Absolutely! Check our online catalog for a wide selection of hot tub and spa replacement parts, or contact us directly for assistance finding any component you need.
Get your spa running again today
Don't let a faulty heater keep you out of your hot tub. Our rebuilt BP100 4.0kW Flo-Thru Heater Assembly delivers reliable performance at a fraction of the cost of buying new.
Shop and order at Western Tub and Pool
Call us: 1-855-248-0777
Email us:fixmytub@gmail.com
Our expert team is ready to help you find the right parts and get your spa back to perfect working order.
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