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1.5 HP Balboa Theramax Spa Pump 2 Speed 115V 4154213-S 1.50HP 115V - Bubbles Supply

1.5 HP Balboa Theramax Spa Pump 2 Speed 115V 4154213-S

Part #: 4154213-S

$604.84
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this spa pump

This 1.5 HP Balboa Theramax spa pump delivers reliable two-speed operation for Balboa spa systems requiring 115V power. The dual-speed design provides energy-efficient circulation at low speed and powerful hydrotherapy at high speed, drawing 13.6 amps on high and 3.6 amps on low speed operation.

Built to OEM specifications with a durable 48Y frame, this genuine Balboa replacement pump ensures exact fit compatibility with your existing plumbing and electrical connections. We guarantee proper fitment and back every pump with our comprehensive 1-year warranty, plus same-day shipping to get your spa running fast. Verify your current pump's voltage, horsepower, and amperage ratings match before ordering to ensure seamless replacement and optimal performance.

Exact part number

4154213-S

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 4154213S
  • Balboa 2-speed pump
  • Theramax pump

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

Technical specifications

Voltage
115V
Horsepower
1.5 HP
Frame size
48Y
Speed
Two-speed
Amperage
13.6A high speed / 3.6A low speed

Common symptoms this part fixes

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

  • Spa pump won't start on high or low speed
  • Motor hums but impeller won't spin
  • Weak jet pressure at high speed
  • Spa shows DR or FLO error code due to insufficient flow
  • Pump trips breaker on startup
  • Motor runs hot and shuts off on thermal overload

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

Before you buy — quick checklist

  • Confirm your existing pump is 115V — this pump is not dual voltage and will not work on 240V systems
  • Match horsepower rating on your old pump label to 1.5 HP
  • Verify your pump uses a 48Y frame motor
  • Confirm two-speed operation — check that your spa controller and wiring support a 2-speed pump
  • Measure existing plumbing union sizes before ordering to confirm compatibility with your wet end connections
  • Note whether your current pump is a direct-drive or has a separate motor and wet end — this is a full pump assembly

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

  • Balboa Theramax pump assembly (motor and wet end)
  • O-rings for union connections

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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