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48Y Frame 2" MBT x 2" MBT Wet End 310-1130SD 1.00HP - Bubbles Supply

48Y Frame 2" MBT x 2" MBT Wet End 310-1130SD

Part #: 310-1130SD

$227.65
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this wet end

This Waterway Hi-Flo wet end fits 48Y frame spa pumps requiring 2" MBT (male buttress thread) connections on both inlet and outlet. Designed for 1.0HP pump configurations, this OEM replacement delivers reliable water circulation for hot tubs and spas using Waterway's proven Hi-Flo technology. The robust construction ensures consistent flow rates and optimal filtration performance.

At Bubbles Supply, we guarantee this wet end will fit your existing 48Y frame perfectly, backed by our exact fit guarantee and comprehensive 1-year warranty. Most orders ship same day, getting your spa back up and running quickly. Before installation, verify your pump frame size and confirm both inlet and outlet connections are 2" MBT to ensure proper fit with your existing plumbing configuration.

Exact part number

310-1130SD

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 2-inch MBT wet end
  • 48Y wet end
  • Hi-Flo pump body
  • Waterway Hi-Flo wet end

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

Technical specifications

Horsepower
1.0 HP
Frame size
48Y

Common symptoms this part fixes

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

  • Pump motor runs but no water flow
  • Wet end leaking from volute or seal area
  • Low water pressure or weak jets
  • Impeller cracked, worn, or damaged
  • Grinding or cavitation noise from pump housing
  • Visible crack or damage to pump body

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

Before you buy — quick checklist

  • Confirm your existing pump uses a 48Y frame — check the motor label for frame designation
  • Verify both inlet and outlet connections are 2-inch MBT (male buttress thread) before ordering
  • Match the horsepower rating on your current motor label to this 1.0 HP wet end
  • Inspect your existing motor shaft — this wet end reuses your current motor, so the motor must be in working condition
  • Check whether your pump is single-speed or two-speed, as this affects impeller compatibility
  • Measure your existing plumbing unions to confirm they mate with 2-inch MBT fittings

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

  • Hi-Flo wet end assembly (volute and impeller)
  • Seal assembly
  • Mounting hardware

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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