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PresAir Vacuum Switch VM12540E-250WI - Bubbles Supply

PresAir Vacuum Switch VM12540E-250WI

Part #: VM12540E-250WI

$108.27
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1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this maintenance/tool

The PresAir VM12540E-250WI is a heavy-duty vacuum switch designed for spa and hot tub chemical feed systems. This SPDT (single pole, double throw) switch handles up to 25 amps at 250 watts, making it suitable for demanding spa applications where reliable chemical dosing control is essential. Built to OEM specifications, this vacuum switch ensures your spa's chemical system operates safely and efficiently.

At Bubbles Supply, we guarantee an exact fit for your spa's chemical feed system, backed by our comprehensive 1-year warranty. Every PresAir vacuum switch ships the same day from our Canadian warehouse, getting your spa back to optimal operation quickly. Professional installation is recommended to ensure proper electrical connections and vacuum line integration with your existing chemical dosing equipment.

Exact part number

VM12540E-250WI

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • chemical feed vacuum switch
  • PresAir vacuum switch
  • SPDT vacuum switch

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

Technical specifications

Amperage
25A

Common symptoms this part fixes

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

  • Chemical dosing system not activating
  • Chemical feeder running continuously without shutting off
  • Spa water chemistry imbalanced due to failed dosing control
  • Vacuum switch not responding to pressure changes
  • Chemical pump cycling erratically

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

Before you buy — quick checklist

  • Confirm your existing vacuum switch is SPDT configuration before ordering
  • Verify your chemical feed system operates at 250W or less
  • Check the vacuum port fitting size on your existing switch matches this unit
  • Confirm the current switch is the failure point — test with a multimeter before replacing
  • Inspect vacuum tubing for cracks or blockages that may have caused the original switch to fail

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

Install difficulty: Medium — Some experience neededTypically 30-60 minutes

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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