Tecmark Pressure Switch TBS-3000

Name: Tecmark Pressure Switch TBS-3000
Brand: Tecmark
SKU: TBS-3000
Price: 23.71 USD
Availability: InStock

Part #: TBS-3000

$23.71

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About this pressure switch

The Tecmark TBS-3000 pressure switch is a high-capacity SPST (single pole, single throw) control switch designed for spa and hot tub chemical feed systems. This 21-amp rated switch activates at 2 PSI with 1/8" NPT threading, making it compatible with most standard spa chemical dosing equipment and circulation systems that require precise pressure-based activation.

Built to Tecmark's OEM specifications, this pressure switch delivers reliable performance in demanding spa environments. With our exact fit guarantee, you get the precise replacement your system needs, backed by our 1-year warranty and same-day shipping on in-stock orders. The 1/8" NPT connection ensures secure installation in your existing plumbing setup—verify thread size and pressure requirements match your current switch before installation.

Exact part number

TBS-3000

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

spa dosing pressure switch
TBS3000
Tecmark chemical feed pressure switch

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

Technical specifications

Amperage: 21A
Port type: 1/8" NPT

Plumbing notes

Port type: 1/8" NPT

Need help measuring? Email hello@bubblessupply.com with a photo of your existing plumbing.

Common symptoms this part fixes

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

Chemical dosing pump fails to activate when circulation pump runs
Chemical feeder runs continuously regardless of system pressure
Chemical feed system not responding to pressure changes
Spa not receiving proper chemical dosing
Pressure switch contacts stuck open or stuck closed
Erratic or inconsistent chemical feed activation

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

Before you buy — quick checklist

Confirm your existing switch is rated for 2 PSI activation — not all chemical feed systems use the same setpoint
Verify the port connection is 1/8" NPT — measure or check your current switch label before ordering
Check that your chemical feed system or control board accepts a 21-amp SPST switch
Test your existing switch with a multimeter before replacing — a wiring or board fault can mimic a bad switch
Confirm this is a normally-open (NO) configuration if your system documentation specifies contact type

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

Medium — Some experience neededTypically 20-45 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

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