---
product_id: 489146916
title: "Four Seasons 84540 Tee Heater Fitting"
brand: "four seasons"
price: "€ 73.78"
currency: EUR
in_stock: true
reviews_count: 5
category: "Four Seasons"
url: https://www.desertcart.fr/products/489146916-four-seasons-84540-tee-heater-fitting
store_origin: FR
region: France
---

# Precision 5/8" heater hose fit Sensor extends into flow path Compact & durable design Four Seasons 84540 Tee Heater Fitting

**Brand:** four seasons
**Price:** € 73.78
**Availability:** ✅ In Stock

## Summary

> 🌡️ Stay ahead of the heat game with precision you can trust!

## Quick Answers

- **What is this?** Four Seasons 84540 Tee Heater Fitting by four seasons
- **How much does it cost?** € 73.78 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/489146916-four-seasons-84540-tee-heater-fitting)

## Best For

- four seasons enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Pros:** Highly rated with 4.4 stars from 214 users who demand performance and precision.
- • **Compact Efficiency:** Small footprint (12.4 x 5.08 x 3.51 cm) saves space without compromising function.
- • **Seamless Integration:** Perfectly fits standard 5/8" heater hoses for hassle-free installation.
- • **Engineered for Reliability:** Robust Four Seasons craftsmanship built to last through every season.
- • **Real-Time Temperature Insight:** Sensor placement ensures accurate, dynamic temp readings—no dead zones.

## Overview

The Four Seasons 84540 Tee Heater Fitting is a precision-engineered plumbing connector designed for 5/8" heater hoses. Featuring a sensor that extends directly into the flow path, it delivers accurate temperature readings in real time. Compact and durable, this fitting is highly rated for its reliable performance and seamless integration, making it a must-have for professionals seeking efficient heating system monitoring.

## Description

Four Seasons 84540 Tee Heater Fitting

Review: Great fit on 5/8 heater hose. I used it with a 25 dollar Bosch temp gauge, and it worked out perfectly. The temp sensor extends down into the flow path of the tee so it is not in a "dead spot". My heater still blows hot air and you can actually see on the gauge when the thermostat opens and closes. Simple, well made, well designed little piece.
Review: Did the job!

## Features

- Four Seasons 84540 Tee Heater Fitting (84540)
- Part number: 84540
- Package Weight: 0.022 pounds
- Package Dimensions: 3.555 H x 12.446 L x 5.334 W (centimeters)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000DCNGII |
| Brand | Four Seasons |
| Customer Reviews | 4.4 4.4 out of 5 stars (214) |
| Date First Available | 15 September 2023 |
| Item Weight | 9.07 g |
| Item model number | 84540 |
| Manufacturer | Four Seasons |
| Manufacturer Part Number | 84540 |
| Product Dimensions | 12.4 x 5.08 x 3.51 cm; 9.07 g |

## Product Details

- **Brand:** Four Seasons
- **Colour:** Brass
- **Item dimensions L x W x H:** 12.4 x 5.1 x 3.5 centimeters
- **Material:** Stainless Steel
- **Size:** 3/8" ou 1/2"

## Images

![Four Seasons 84540 Tee Heater Fitting - Image 1](https://m.media-amazon.com/images/I/61pJTcZ9vkL.jpg)
![Four Seasons 84540 Tee Heater Fitting - Image 2](https://m.media-amazon.com/images/I/61CaG9YFBBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***L on 3 April 2021*

Great fit on 5/8 heater hose. I used it with a 25 dollar Bosch temp gauge, and it worked out perfectly. The temp sensor extends down into the flow path of the tee so it is not in a "dead spot". My heater still blows hot air and you can actually see on the gauge when the thermostat opens and closes. Simple, well made, well designed little piece.

### ⭐⭐⭐⭐⭐ Review
*by R***D on 16 August 2022*

Did the job!

### ⭐ Review
*by K***H on 11 April 2023*

Leaked immediately, had to JBweld it to close the gap where someone forgot to weld it.

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**Shop now:** [https://www.desertcart.fr/products/489146916-four-seasons-84540-tee-heater-fitting](https://www.desertcart.fr/products/489146916-four-seasons-84540-tee-heater-fitting)

---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-04-23*