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1.5 HP EX2 Spa Pump 2 Speed 115V 3420610-1U 1.50HP 115V - Bubbles Supply

1.5 HP EX2 Spa Pump 2 Speed 115V 3420610-1U

Part #: 3420610-1U

$454.94
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this spa pump

The Waterway EX2 1.5 HP 2-Speed Spa Pump delivers reliable circulation and jet power for mid-size to large residential spas. This 115V pump features dual-speed operation with 13.5/4.7 amp draw, providing efficient filtration on low speed and powerful hydrotherapy on high speed. Built on Waterway's proven 48Y frame design with 2" male buttress thread connections, this OEM-quality pump ensures years of dependable service.

At Bubbles Supply, we guarantee this pump will be an exact fit for your spa's original Waterway EX2 pump assembly. Every pump ships the same day when ordered before our cutoff, backed by our comprehensive 1-year warranty for complete peace of mind. Verify your existing pump's voltage, amperage, and plumbing connections match the specifications before installation to ensure proper fit and performance.

Exact part number

3420610-1U

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 3420610-1U pump
  • EX2 1.5HP 2-speed
  • Waterway EX2 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
13.5A high speed / 4.7A low speed

Common symptoms this part fixes

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

  • Pump won't start on high or low speed
  • Motor hums but impeller won't spin
  • Weak jet pressure at all speeds
  • Pump trips breaker during operation
  • Spa stuck in low-flow or filtration mode only
  • Leaking from motor housing or pump wet end

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

Before you buy — quick checklist

  • Confirm your existing pump label reads 115V — this pump is not compatible with 240V systems
  • Verify your current pump is a 2-speed unit, not single-speed
  • Match the HP rating on your old pump label to 1.5 HP
  • Check that your plumbing connections match the 2-inch male buttress thread fitting
  • Confirm your spa control system supports a 48Y frame 2-speed pump
  • Note whether your existing pump is a Waterway EX2 — other brands may use different mounting footprints

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

Install difficulty: Medium — Some experience neededTypically 60-90 minutes

What's in the box

  • Waterway EX2 pump assembly (wet end and motor)
  • Mounting feet

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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