---
product_id: 117977604
title: "FJC FJC6810 1 Pack UV A/C Dye (R-1234Yf)"
brand: "fjc"
price: "$24.20"
currency: USD
in_stock: true
reviews_count: 3
category: "Fjc"
url: https://www.desertcart.us/products/117977604-fjc-fjc6810-1-pack-uv-a-c-dye-r-1234yf
store_origin: US
region: United States of America
---

# Fluorescent for leak visibility 1 oz. precision UV dye Made in USA quality FJC FJC6810 1 Pack UV A/C Dye (R-1234Yf)

**Brand:** fjc
**Price:** $24.20
**Availability:** ✅ In Stock

## Summary

> 🔍 Illuminate leaks before they become costly headaches!

## Quick Answers

- **What is this?** FJC FJC6810 1 Pack UV A/C Dye (R-1234Yf) by fjc
- **How much does it cost?** $24.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/117977604-fjc-fjc6810-1-pack-uv-a-c-dye-r-1234yf)

## Best For

- fjc enthusiasts

## Why This Product

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

## Key Features

- • **Proudly Made in the USA:** Trust in quality manufacturing that meets professional standards.
- • **Instant Visual Confirmation:** UV dye highlights leaks under UV light—no guesswork, just results.
- • **Pinpoint Slow Leaks Effortlessly:** Detect even the tiniest A/C leaks with vibrant UV fluorescence.
- • **Maximize Value with 4 Applications:** Each 1 oz. bottle treats up to 4 A/C systems, saving you time and money.
- • **Seamless Integration with R-1234yf:** Specifically formulated for the latest eco-friendly refrigerant.

## Overview

FJC6810 UV A/C Dye is a 1 oz. fluorescent leak detection liquid designed exclusively for R-1234yf refrigerant systems. Engineered to mix seamlessly with oil and refrigerant, it highlights leaks under UV light, enabling precise and efficient diagnostics. Each bottle provides up to four applications, making it a cost-effective solution for professional-grade A/C maintenance. Proudly manufactured in the USA, this dye is trusted by technicians to catch slow leaks that others miss.

## Description

Features & Benefits: Fluorescent leak detection dye 4 individual applications per bottle For use with R-1234yf Only need. 25 oz. for 8 oz.

Review: Works very well. - I've used this dye for a couple of years now. It is a great way to find those difficult "slow leaks". I'm sure I will order more when the supply runs low.
Review: Great product - Good buy for sure

## Features

- Contains 1 oz.
- Use 1/4 oz. per 12 oz. oil
- FJC’s Air Conditioning Dyes mix with the oil and refrigerant and circulate throughout the A/C system
- At the area of a leak, a small amount of dye will escape and stain the area with dye, exposing the leak.
- UV/Fluorescent dyes allow the operator to see this with the aid of the UV lamp and enhancing glasses
- Manufactured in the United States

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07HFPFBRZ |
| Best Sellers Rank | #52,714 in Automotive ( See Top 100 in Automotive ) #191 in Air Conditioning Line Repair Tools |
| Brand Name | FJC |
| Color | Factory |
| Compatible Material | Leather |
| Customer Reviews | 4.6 4.6 out of 5 stars (48) |
| Global Trade Identification Number | 00609989019586 |
| Included Components | UV Dye |
| Item Form | Liquid |
| Item Type Name | UV Leak Detection Dye |
| Item Weight | 0.01 Ounces |
| Manufacturer | FJC |
| Manufacturer Part Number | FJC6810 |
| Model Number | FJC6810 |
| Number of Items | 1 |
| UPC | 609989019586 |
| Unit Count | 1.0 Count |
| Warranty Description | Through Amazon |

## Product Details

- **Brand:** FJC
- **Color:** Factory
- **Compatible Material:** Leather
- **Item Form:** Liquid
- **Item Weight:** 0.01 Ounces

## Images

![FJC FJC6810 1 Pack UV A/C Dye (R-1234Yf) - Image 1](https://m.media-amazon.com/images/I/51uWOIk5wLL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works very well.
*by L***R on January 30, 2026*

I've used this dye for a couple of years now. It is a great way to find those difficult "slow leaks". I'm sure I will order more when the supply runs low.

### ⭐⭐⭐⭐⭐ Great product
*by J***M on July 6, 2024*

Good buy for sure

### ⭐⭐⭐⭐⭐ 1234yf dye
*by K***S on August 29, 2019*

A perfect solution for 1234yf leak detection.

## Frequently Bought Together

- FJC FJC6810 1 Pack UV A/C Dye (R-1234Yf)
- FJC 2458 R1234YF Refrigerant Oil, 8 fl. oz, 1 Pack
- Lichamp AC Oil Injector R134A, R1234YF Refrigerant A/C Dye Injector Kit with Adjustable Coupler and Oil Checkers

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-09*