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2" Tailpiece 42-2391A-K - Bubbles Supply

2" Tailpiece 42-2391A-K

Part #: 42-2391A-K

$8.69
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this union/fitting

The HydroQuip 2" Tailpiece 42-2391A-K is an essential plumbing component designed for spa jet assemblies and water feature connections. This genuine OEM part features a 90-degree barb configuration with 3/4" threading, making it compatible with various HydroQuip spa systems that require secure, leak-proof water flow connections.

Engineered for durability and precise fit, this tailpiece ensures proper water circulation in your spa's plumbing system. As an authorized HydroQuip dealer, we guarantee this is the exact OEM replacement part your spa needs, backed by our 1-year warranty and same-day shipping commitment. The 90-degree angle design allows for efficient routing in tight spaces while maintaining optimal water flow. Always verify your existing tailpiece dimensions and thread specifications before installation to ensure proper fitment with your spa's plumbing configuration.

Exact part number

42-2391A-K

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Also known as / Replaces

This part replaces or is interchangeable with:

  • 2 inch tailpiece
  • barbed tailpiece fitting
  • spa jet tailpiece
  • spa plumbing tailpiece

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

Common symptoms this part fixes

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

  • Visible water leak at jet body connection
  • Water dripping behind spa cabinet at plumbing fitting
  • Jet assembly will not stay seated or keeps backing out
  • Poor jet pressure due to air infiltration at a cracked tailpiece
  • Cracked or broken tailpiece discovered during inspection

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

Before you buy — quick checklist

  • Measure your existing tailpiece — confirm the 2" nominal pipe size matches your plumbing
  • Verify thread size and type on your existing fitting before ordering
  • Inspect the mating jet body or manifold to confirm this tailpiece pattern is compatible
  • Check whether your existing tailpiece uses a barb, slip, or threaded connection on the hose side
  • Confirm the part number 42-2391A-K on your existing tailpiece or in your spa's service manual

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

Install difficulty: Medium — Some experience neededTypically 30–60 minutes depending on cabinet access and plumbing configuration

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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