---
product_id: 163466076
title: "Beachcomber Flow Switch, 4090540"
brand: "harwil corporation"
price: "NZ$282"
currency: NZD
in_stock: true
category: "Harwil Corporation"
url: https://www.desertcart.nz/products/163466076-beachcomber-flow-switch-4090540
store_origin: NZ
region: New Zealand
---

# 48" cable for flexible installation 1/2" MPT connector for seamless integration Stainless steel contacts ensure durability Beachcomber Flow Switch, 4090540

**Brand:** harwil corporation
**Price:** NZ$282
**Availability:** ✅ In Stock

## Summary

> 🛁 Keep your hot tub flowing flawlessly—safety never looked this smart!

## Quick Answers

- **What is this?** Beachcomber Flow Switch, 4090540 by harwil corporation
- **How much does it cost?** NZ$282 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/163466076-beachcomber-flow-switch-4090540)

## Best For

- harwil corporation enthusiasts

## Why This Product

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

## Key Features

- • **Robust Build Quality:** Stainless steel contact material guarantees long-lasting performance.
- • **Certified Reliability:** ETL certified for trusted safety and quality standards.
- • **Tailored Compatibility:** Specifically engineered for Beachcomber hot tubs (serial D, E, F; 2003-2005).
- • **Effortless Installation:** 48" cable and 1/2" MPT connector simplify setup and replacement.
- • **Precision Safety Assurance:** Automatically detects water flow to prevent dry heating hazards.

## Overview

The Harwil Corporation Beachcomber Flow Switch 4090540 is a high-quality, ETL-certified safety device designed to monitor water flow in Beachcomber hot tubs from 2003 to 2005 (serial numbers D, E, F). Featuring a 1/2" MPT connector, 48" cable, and durable stainless steel contacts, it ensures reliable operation by preventing dry heating conditions, enhancing both safety and longevity of your spa experience.

## Description

This Beachcomber Flow Switch is a safety device responsible for assuring there is adequate water pressure within the heater assembly in order to avoid a dry condition that could lead to a safety hazard.For Beachcomber hot tubs with serial numbers that begin with D, E and F (2003 to 2005).1/2" Mpt48" cable

## Features

- Beachcomber Flow Switch, 4090540.
- For Beachcomber hot tubs with serial numbers that begin with D, E and F (2003 to 2005).
- 1/2" Mpt.
- 48" cable.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WSKF9W8 |
| Best Sellers Rank | #338,159 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #9,269 in Pool & Spa Replacement Parts |
| Brand Name | Harwil Corporation |
| Circuit Type | 1-way |
| Compatible Devices | Beachcomber hot tubs with serial numbers that begin with D, E and F (2003 to 2005) |
| Connectivity Protocol | X-10 |
| Connector Type | Molex With 1/2" Mpt. |
| Contact Material | Stainless Steel |
| Contact Type | Normally Closed |
| Control Method | Touch |
| Customer Reviews | 5.0 5.0 out of 5 stars (6) |
| Manufacturer | Harwil Corporation |
| Material Type | Lead |
| Model | 4090540 |
| Mounting Type | Panel Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operation Mode | automatic |
| Part Number | 4090540 |
| Specification Met | ETL |
| Switch Type | Flow Switch, Pressure Switch |
| Terminal | Screw |
| UPC | 658848336593 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Harwil Corporation
- **Circuit Type:** 1-way
- **Connector Type:** Molex With 1/2" Mpt.
- **Contact Material:** Stainless Steel
- **Contact Type:** Normally Closed
- **Material:** Lead
- **Mounting Type:** Panel Mount
- **Operation Mode:** automatic
- **Switch Type:** Flow Switch, Pressure Switch
- **Terminal:** Screw

## Images

![Beachcomber Flow Switch, 4090540 - Image 1](https://m.media-amazon.com/images/I/514bjbNNafL.jpg)

## Frequently Bought Together

- Harwil Corporation Beachcomber Flow Switch, 4090540
- Taylor Technologies R-0870-I DPD Powder for Swimming Pool, 10gm

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-10-15*