---
product_id: 94432365
title: "TECMARK 45-100-1410 Universal Spa Controller Pressure Switch, 3903"
brand: "tecmark"
price: "€ 54.37"
currency: EUR
in_stock: false
url: https://www.desertcart.fi/products/94432365-tecmark-45-100-1410-universal-spa-controller-pressure-switch-3903
store_origin: FI
region: Finland
---

# Compact size: 2.5" x 1.75" for easy installation Adjustable pressure range: 1 to 5 PSI Universal fit for all major spa controllers TECMARK 45-100-1410 Universal Spa Controller Pressure Switch, 3903

**Brand:** tecmark
**Price:** € 54.37
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Upgrade your spa’s heartbeat with universal precision pressure control!

## Quick Answers

- **What is this?** TECMARK 45-100-1410 Universal Spa Controller Pressure Switch, 3903 by tecmark
- **How much does it cost?** € 54.37 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/94432365-tecmark-45-100-1410-universal-spa-controller-pressure-switch-3903)

## Best For

- tecmark enthusiasts

## Why This Product

- Trusted tecmark brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact & Convenient:** Small footprint (2.5" x 1.75") fits standard 1/8" NPT holes with 3/8" plastic thread.
- • **Peace of Mind Warranty:** Backed by a 1-year limited warranty—quality you can trust, no returns hassle.
- • **Seamless Compatibility:** Fits all major spa controllers with pressure switches—no guesswork needed.
- • **Reliable Power Handling:** Supports 1 amp at 120 VAC inductive load and 72 VA pilot duty at 24 VAC.
- • **Precision Pressure Control:** Factory-set at 1.5 PSI, adjustable up to 5 PSI for tailored spa performance.

## Overview

The TECMARK 45-100-1410 Universal Spa Controller Pressure Switch is a compact, adjustable pressure switch compatible with all major spa controllers featuring heater pressure switches. It supports 1 amp at 120 VAC inductive loads and 72 VA pilot duty at 24 VAC, fits standard 1/8 inch NPT holes, and offers a pressure range adjustable from 1 to 5 PSI. Factory-set at 1.5 PSI, it ensures precise spa operation and comes with a 1-year limited warranty for dependable performance.

## Description

SpaGuts TECMARK This Universal Pressure Switch fits all major brands of spa controllers that has a Pressure Switch installed on the heater. Model 3903. 1 amp at 120 VAC (inductive), 72 VA pilot duty at 24 VAC. Approximately 2.5 long and 1.75 inch in diameter. Fits in 1/8 inch NPT hole, and has 3/8 inch plastic thread. Easily adjustable from 1 to 5 PSI, and is shipped factory set at 1.5 PSI. SpaGuts P/N: 45-100-1410. Replacement option for the following pressure switch part numbers or models: Tec mark 3902, 71586, 34-0178, 5-20-7001, 3903-DF. This item comes with 1-year limited warranty, and is NON-Returnable.

## Features

- Universal pressure switch fits all major brands of spa controllers that has a pressure switch installed on the heater
- Model 3903; 1 amp at 120 VAC (inductive), 72 VA pilot duty at 24 VAC
- Approximately 2.5 long and 1.75 inch in diameter
- Fits in 1/8 inch NPT hole, and has 3/8 inch plastic thread
- Comes with 1-year limited warranty, and is non-returnable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07K4QS1JQ |
| Date First Available | November 2, 2018 |
| Item Weight | 3 pounds |
| Item model number | 45-100-1410 |
| Manufacturer | SpaGuts |
| Package Dimensions | 15 x 10 x 5 inches |

## Images

![TECMARK 45-100-1410 Universal Spa Controller Pressure Switch, 3903 - Image 1](https://m.media-amazon.com/images/I/41q4xgZSHUL.jpg)
![TECMARK 45-100-1410 Universal Spa Controller Pressure Switch, 3903 - Image 2](https://m.media-amazon.com/images/I/51+uLs7G03L.jpg)

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**Shop now:** [https://www.desertcart.fi/products/94432365-tecmark-45-100-1410-universal-spa-controller-pressure-switch-3903](https://www.desertcart.fi/products/94432365-tecmark-45-100-1410-universal-spa-controller-pressure-switch-3903)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-20*