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3.0KW Double Bend Flo-Thru Heater Element PA-25-4036-BI 240V - Bubbles Supply

3.0KW Double Bend Flo-Thru Heater Element PA-25-4036-BI

Part #: PA-25-4036-BI

$22.11
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About this heater element

The ProAqua 3.0KW Double Bend Flo-Thru Heater Element (PA-25-4036-BI) is a premium replacement heating element designed for spa systems requiring reliable 240V operation. This double-bend configuration maximizes heat transfer efficiency while fitting seamlessly into standard flo-thru heater assemblies. The 3.0kW power rating delivers consistent water heating performance for medium to large spa installations.

Built to OEM specifications, this ProAqua element solves common heater issues including "HH" (high limit) and "OH" (overheat) error codes that plague aging spa systems. Your exact fit is guaranteed with our precision-matched replacement parts, backed by our comprehensive 1-year warranty. Same-day shipping ensures minimal downtime for your spa repairs. Always verify your existing element's wattage and voltage specifications match before installation, and ensure proper water flow through the heater assembly during operation.

Exact part number

PA-25-4036-BI

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Also known as / Replaces

This part replaces or is interchangeable with:

  • 3000W spa heater element
  • 3KW flo-thru element
  • double bend heater element

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

Technical specifications

Voltage
240V
Amperage
12.5A @ 240V

Common symptoms this part fixes

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

  • HH error code on spa display
  • OH (overheat) fault code triggering repeatedly
  • Spa not heating or heating very slowly
  • Heater assembly passing flow test but not producing heat
  • Tripped high-limit sensor linked to element failure

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

Before you buy — quick checklist

  • Confirm your existing element is rated 3.0KW at 240V — check the label on your current element or heater manifold
  • Verify this is a flo-thru style heater assembly, not a pressure-switch style
  • Inspect the heater housing for cracks or corrosion before replacing the element — a bad housing will fail a new element quickly
  • Confirm double-bend configuration matches your existing element's physical shape before ordering
  • Check that your spa's high-limit and flow switch are functioning correctly — a failed element is often a symptom of a flow or thermostat issue upstream

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

  • 3.0KW double bend flo-thru heater element
  • Element O-rings or gaskets (verify at time of order)

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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