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Rite Fit 4.5KW 230V Flow Thru Heater 27-J0519-6S-K 230V - Bubbles Supply

Rite Fit 4.5KW 230V Flow Thru Heater 27-J0519-6S-K

Part #: 27-J0519-6S-K

$194.13
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this heater

The HydroQuip 4.5KW 230V Flow Thru Heater (27-J0519-6S-K) is a professional-grade replacement heating element designed for spas and hot tubs using HydroQuip control systems. This 15-inch heater assembly operates at 230 volts and delivers 4.5 kilowatts of heating power, making it suitable for medium to large spa applications that require reliable, consistent water heating performance.

Built to HydroQuip's exacting OEM standards, this flow-through heater features durable construction that withstands continuous use and chemical exposure. At Bubbles Supply, we guarantee this heater will fit your system exactly as intended, and we'll ship it the same day you order. Every heater comes backed by our comprehensive 1-year warranty for complete peace of mind. Verify your existing heater's voltage and wattage specifications before installation, and ensure proper flow switch operation for safe, efficient heating performance.

Exact part number

27-J0519-6S-K

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Also known as / Replaces

This part replaces or is interchangeable with:

  • HydroQuip 27-J0519-6S-K heater element
  • HydroQuip 4.5KW heater assembly
  • HydroQuip flow-through heater

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

Technical specifications

Voltage
230V

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 error code on control panel (HH or OH fault)
  • Spa takes excessively long to reach set temperature
  • Heater element burned out or visibly corroded
  • Control system displays open heater circuit fault
  • Spa heats intermittently or cuts out before reaching temperature

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

Before you buy — quick checklist

  • Confirm your existing heater is rated 230V — do not install on a 120V system
  • Verify your spa control system is a HydroQuip unit before ordering
  • Match the wattage rating — this is a 4.5KW unit, not a direct swap for 4.0KW or 6.0KW heaters
  • Inspect the flow switch and pressure switch before replacement — a faulty switch will damage a new heater
  • Check for calcium scale or corrosion in the heater tube that may indicate a water chemistry problem requiring correction prior to install

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

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

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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