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4.0KW Double Bend Flo-Thru Heater Element PA-25-4041-BI 240V - Bubbles Supply

4.0KW Double Bend Flo-Thru Heater Element PA-25-4041-BI

Part #: PA-25-4041-BI

$51.30
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this heater element

The 4.0KW Double Bend Flo-Thru Heater Element PA-25-4041-BI delivers reliable heating power for spas requiring M7 thread configuration. This ProAqua replacement element operates at 240V with 4000-watt output, featuring the popular double-bend flo-thru design that maximizes heat transfer while maintaining efficient water circulation through your spa's heating system.

Built to OEM specifications, this element provides an exact fit guarantee and ships same-day from our Canadian warehouse. The robust construction handles demanding spa environments while our 1-year warranty ensures long-term performance and peace of mind. Whether you're dealing with no heat (NH) or overheating (OH) issues, this element restores proper temperature control to get your spa running like new. Verify your existing element's thread size and voltage requirements before installation to ensure proper fitment.

Exact part number

PA-25-4041-BI

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 4KW Spa Heater Element
  • Double Bend Heater Element
  • Flo-Thru Heater Element
  • M7 Heater Element

Looking for an older part number? Check our supersession lookup tool

Technical specifications

Voltage
240V

Common symptoms this part fixes

If your spa is showing any of these signs, this part is likely your fix:

  • No heat or insufficient heating
  • Spa not reaching set temperature
  • Heater element burned out or visibly corroded
  • High limit or overheat fault codes (OH)
  • No heat fault codes (NH)
  • Spa heater cycling on and off without maintaining temperature

Not sure if this is your problem? Try our diagnostic centre or .

Before you buy — quick checklist

  • Confirm your existing element uses M7 thread configuration before ordering
  • Verify your spa system runs on 240V — do not install on a 120V system
  • Inspect your heater housing for cracks or corrosion before replacing element only
  • Check your current element's wattage rating matches 4.0KW
  • Confirm the double-bend form factor fits your heater tube housing — measure bend clearance if space is tight

Reading the checklist now prevents 90% of returns. Worth the 60 seconds.

Install difficulty: Medium — Some experience neededTypically 45-90 minutes

What's in the box

  • 4.0KW Double Bend Flo-Thru Heater Element
  • M7 thread nuts
  • Element gaskets or O-rings

If your order is missing any items listed above, contact hello@bubblessupply.com within 48 hours of delivery.

Warranty

1 year manufacturer warranty against defects

Covers manufacturing defects. Does not cover improper installation, normal wear, or accidental damage.

Warranty claims: warranty@bubblessupply.com

Perfect Fit Guarantee

Ordered with our help and the part doesn't fit? Contact us before installation. We'll resolve it with an exchange, replacement recommendation, or return approval.

Learn about our Perfect Fit Guarantee →

Shipping

We ship across the US and Canada. US orders ship from our US warehouse to US customers; Canadian orders ship from our Canadian warehouse to Canadian customers — no cross-border shipping, no surprise duties. In-stock orders placed before 3pm CT ship same day. Standard shipping $9.95 flat rate. Free shipping on orders over $200. Express options available at checkout.

Returns

30-day hassle-free returns on unused parts in original packaging. Contact us before returning to receive your RMA number.

Frequently asked questions

Check the Compatibility section above to confirm fitment for your spa brand and model. If your model is not listed, use our fitment selector at /pages/find-my-part or ask our parts AI for a personalized recommendation.

In-stock orders placed before 3pm CT ship the same day. You will receive tracking information by email as soon as your order ships.

We accept returns within 30 days of delivery for unused items in original packaging. Email returns@bubblessupply.com with your order number to start a return. Installed electrical parts cannot be returned for safety reasons.

Yes, all new parts come with a 1-year warranty against manufacturing defects. Warranty does not cover damage from improper installation or normal wear and tear.

Customer reviews

AI Fitment Assistant

Tell us your spa model and we will confirm this part fits before you buy.

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