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Booster Pump Volute 315-8300B - Bubbles Supply

Booster Pump Volute 315-8300B

Part #: 315-8300B

$137.35
In stock — ships today
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this spa pump

The Waterway Booster Pump Volute 315-8300B is a genuine OEM replacement component designed for Waterway booster pump systems commonly found in spa and hot tub installations. This factory-original volute housing ensures your booster pump operates at peak performance, maintaining proper water flow and pressure for your spa's jet system.

Built to Waterway's exacting specifications, this volute delivers an exact fit guaranteed to match your original equipment. We ship same-day from our Canadian warehouse and back every part with our comprehensive 1-year warranty for complete peace of mind. The bagged packaging protects the component during shipping and storage. Before installation, verify your pump model number matches the 315-8300B specification to ensure proper compatibility and optimal performance.

Exact part number

315-8300B

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • booster pump casing
  • Booster pump housing
  • pump volute housing
  • pump wet end volute

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:

  • Cracked or visibly damaged volute housing
  • Water leaking from the pump wet end
  • Loss of jet pressure or reduced water flow
  • Suction or discharge port damage causing air ingestion
  • Pump vibrating excessively due to housing imbalance or warping

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

Before you buy — quick checklist

  • Confirm your existing booster pump model number matches the 315-8300B specification — check the label on the pump body
  • Inspect whether the damage is isolated to the volute or also involves the impeller, seal, or motor
  • Verify the port orientation and plumbing connection positions match your current installation before ordering
  • Note whether your volute is cracked, warped, or just leaking — a failed shaft seal can mimic volute damage
  • Have your current volute on hand to compare port sizing and bolt pattern before disassembly

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

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

Warranty

1 year 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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