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Double Barrel 4.0KW Heater 26-C3072-2 120/240V - Bubbles Supply

Double Barrel 4.0KW Heater 26-C3072-2

Part #: 26-C3072-2

$1010.06
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About this heater

The HydroQuip Double Barrel 4.0KW Heater 26-C3072-2 is a dual-element heating system designed for residential spas requiring reliable, efficient water heating. This 4.0kW heater operates on 120/240V power and features an integrated pressure switch for safe operation. The double barrel design provides consistent heat distribution while the secondary 1.0kW element ensures backup heating capacity.

At Bubbles Supply, we guarantee this heater is an exact fit for your HydroQuip heating system. Every unit ships same-day and includes our comprehensive 1-year warranty for complete peace of mind. The pressure switch prevents dry-fire damage by monitoring water flow before allowing heating elements to activate. Professional installation is recommended to ensure proper electrical connections and pressure switch calibration. Always verify power specifications and plumbing connections match your existing setup before installation.

Exact part number

26-C3072-2

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Also known as / Replaces

This part replaces or is interchangeable with:

  • Double Barrel Heater
  • Dual Element Spa Heater
  • HydroQuip 4kW Heater

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

Technical specifications

Voltage
120V/240V

Common symptoms this part fixes

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

  • Spa water not heating
  • Heater trips breaker repeatedly
  • HH error code on control panel
  • OH (overheat) error code on control panel
  • Spa heats slowly or inconsistently
  • Pressure switch fault preventing heater activation

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

Before you buy — quick checklist

  • Confirm your existing heater's kW rating and voltage match 4.0kW / 120-240V
  • Locate the OEM part number on your existing heater tube or control system label and verify 26-C3072-2 is the correct replacement
  • Check that your control system is HydroQuip — this is an OEM HydroQuip unit and may not be a drop-in for other brands
  • Inspect plumbing union sizes and connection style on your existing heater before ordering
  • Verify your electrical supply can support 4.0kW draw at your operating voltage
  • If you're chasing HH or OH fault codes, also inspect your hi-limit sensor and pressure switch before replacing the heater — those components can trigger the same codes

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

Install difficulty: Hard — Technician recommended

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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