---
product_id: 726955254
title: "TSI Supercool 28399 HVAC Leakproof Syringe with Applicator Hose 60ml"
brand: "tsi supercool"
price: "€ 102.38"
currency: EUR
in_stock: true
reviews_count: 5
category: "Tsi Supercool"
url: https://www.desertcart.fi/products/726955254-tsi-supercool-28399-hvac-leakproof-syringe-with-applicator-hose-60ml
store_origin: FI
region: Finland
---

# Universal fit for all A/C & refrigeration systems 60ml capacity for up to 6-ton HVAC systems Corrosion protection additive, polymer-free TSI Supercool 28399 HVAC Leakproof Syringe with Applicator Hose 60ml

**Brand:** tsi supercool
**Price:** € 102.38
**Availability:** ✅ In Stock

## Summary

> 🧊 Seal leaks like a pro—cool comfort, zero downtime!

## Quick Answers

- **What is this?** TSI Supercool 28399 HVAC Leakproof Syringe with Applicator Hose 60ml by tsi supercool
- **How much does it cost?** € 102.38 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/726955254-tsi-supercool-28399-hvac-leakproof-syringe-with-applicator-hose-60ml)

## Best For

- tsi supercool enthusiasts

## Why This Product

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

## Key Features

- • **Pro Tip Ready:** Pairs perfectly with metal dye injectors for safer, faster, and less wasteful application
- • **Broad Compatibility:** Works seamlessly with all lubricants and refrigerants—universal fit, no car use
- • **Compact & Efficient:** 60ml syringe designed for up to 6-ton HVAC systems—ideal for professional quick fixes
- • **Precision Leak Sealing:** Permanently seals slow A/C and refrigeration leaks without scratching components
- • **Future-Proof Protection:** Additive package guards your system against corrosion, extending equipment life

## Overview

The TSI Supercool 28399 Leakproof Syringe is a 60ml HVAC solution designed to permanently seal leaks in air conditioning and refrigeration systems up to 6 tons. Featuring a universal fit (excluding automotive use), it contains no polymers to avoid system damage and includes additives that protect against future corrosion. Compatible with all lubricants and refrigerants, this syringe is a must-have for professionals seeking an efficient, cost-effective leak repair.

## Description

TSI Supercool 28399 HVAC Leakproof Syringe with Application Hose, 60ml

Review: Long story short, this product is so much easier to inject using an HVAC dye injector. A nice metal one is available for $30 on desertcart. I have no idea why it doesn't ship with one or that the manufacturer doesn't recommend it. They really should! The syringe it comes with sits near the edge of structural failure and needs modifications to even work! Short story long, my uncle fixes people's HVAC on the side for cheap. He swears by this stuff as the first response to slow leaks. However, the directions/videos on how to use this product are a joke. They show technicians just injecting the stuff easily and quickly in 30 seconds. This is not going to happen if you use the syringe. The pressure inside an R410a system is near 150 PSI. For me to use the syringe, I had to first stop the plunger from bending by sticking pieces of extra plastic around it so it would not bend. I had to use a washer on the front to stop the caulk gun from destroying the syringe front. Then I needed an extra clamp to help close and hold the caulk gun handle. Even then, I could only inject about a hair's width worth every 5 minutes. If I clamped it and let it sit, the system would eventually pull some out of the syringe, and I could repeat this. Before I could get this to work, the check valves were both locked up. I had to extend the Schrader valve trigger on the front valve and poke out the rear check valve because the tubing had excessive pressure that had them locked up. This was extremely dangerous. When it release it sounded like a gunshot and sent the Allen wrench I poked it with flying out of sight. I nearly got a hydraulic injection wound from a stream of this blue stuff! Do not try this! Once I was able to get the blue stuff flowing again, the issue was that the syringe would always come loose because it only needs one turn to start leaking, so about 3/4 of the product ended up on the ground as I messed with it. I ordered another tube because they are only $20. I also ordered a metal HVAC dye injector for $32 off desertcart. It just opened it all the way, squirted the blue stuff in, closed it, and bled out the air until blue came out the tube end. I connected it and turned it a half turn every 10-15 seconds until it was empty. So much easier, no waste, and much safer! Please just spend the extra money to inject this, especially if it has a chance of working. $55 is much cheaper than $500 or $5000.
Review: Worked out to my car AC. All the gas leaked within a week. Refilled the gas and is successfully cooling.. one more problem faces is connector didn't work out so opened the cap of tube and directly applied

## Features

- The 2oz syringe can be used up to 6 ton increments. Fit Type: Universal Fit - Not for Car --
- Permanently seals air conditioner and refrigeration system leaks
- Contains no polymer and will not scratch A/C systems or components
- Additive package protects against future corrosion
- Works with all lubricants and refrigerants

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07BH9Y9RC |
| ASIN  | B07BH9Y9RC |
| Amazon Bestseller | #1,360,378 in Automotive ( See Top 100 in Automotive ) #155 in Air Conditioning Oils |
| Color | blue |
| Customer Reviews | 3.8 3.8 out of 5 stars (335) |
| Date First Available | August 11, 2018 |
| Global Trade Identification Number | 00672264028399 |
| Included Components | TSI Supercool HVAC Leakage Stop Syringe with Application Hose 60ml 28399 |
| Item model number  | 28399 |
| Manufacturer | TSI Supercool |
| Manufacturer  | TSI Supercool |
| Material Type | プラスチック |
| Package Dimensions | 24.1 x 23.9 x 4 cm; 56.7 g |
| Package Dimensions  | 24.1 x 23.9 x 4 cm; 56.7 g |
| UPC | 672264028399 |

## Product Details

- **Brand:** TSI Supercool
- **Item Volume:** 2 Fluid Ounces
- **Material:** プラスチック
- **Sterility Rating:** Sterile
- **Unit Count:** 2.0 Count

## Images

![TSI Supercool 28399 HVAC Leakproof Syringe with Applicator Hose 60ml - Image 1](https://m.media-amazon.com/images/I/81vgeD2DJ2L.jpg)

## Questions & Answers

**Q: Is there any risk in using "too much"?  I only have a 3 ton system.  Any risk in using all of it?**
A: Really depends on the type of system you have. But for the most part I would not use more than two applications in a year. If your system uses an expansion valve it may stop it up. I got tired of my system and started using the LG dual inverter AC unit. It uses one third of the electricity and saves me about $250 a month.

**Q: Puedo usar este producto para sellar una fuga en el sistema de aire acondicionado del carro?**
A: No me lo recomiendo.

**Q: Does this work with 410A systems?**
A: It should work with any refrigerant system. Be patient installing it. Do not use it all on small systems. It doesn't say that anywhere on the package. It does says that it's enough for a 6 ton AC unit. That being said, don't use it all on a 9 ounce system.

**Q: Can it be used on automotive r134a a/c systems?**
A: No, it is for stationary HVAC-R systems.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by K***D on May 1, 2023*

Long story short, this product is so much easier to inject using an HVAC dye injector. A nice metal one is available for $30 on Amazon. I have no idea why it doesn't ship with one or that the manufacturer doesn't recommend it. They really should! The syringe it comes with sits near the edge of structural failure and needs modifications to even work! Short story long, my uncle fixes people's HVAC on the side for cheap. He swears by this stuff as the first response to slow leaks. However, the directions/videos on how to use this product are a joke. They show technicians just injecting the stuff easily and quickly in 30 seconds. This is not going to happen if you use the syringe. The pressure inside an R410a system is near 150 PSI. For me to use the syringe, I had to first stop the plunger from bending by sticking pieces of extra plastic around it so it would not bend. I had to use a washer on the front to stop the caulk gun from destroying the syringe front. Then I needed an extra clamp to help close and hold the caulk gun handle. Even then, I could only inject about a hair's width worth every 5 minutes. If I clamped it and let it sit, the system would eventually pull some out of the syringe, and I could repeat this. Before I could get this to work, the check valves were both locked up. I had to extend the Schrader valve trigger on the front valve and poke out the rear check valve because the tubing had excessive pressure that had them locked up. This was extremely dangerous. When it release it sounded like a gunshot and sent the Allen wrench I poked it with flying out of sight. I nearly got a hydraulic injection wound from a stream of this blue stuff! Do not try this! Once I was able to get the blue stuff flowing again, the issue was that the syringe would always come loose because it only needs one turn to start leaking, so about 3/4 of the product ended up on the ground as I messed with it. I ordered another tube because they are only $20. I also ordered a metal HVAC dye injector for $32 off Amazon. It just opened it all the way, squirted the blue stuff in, closed it, and bled out the air until blue came out the tube end. I connected it and turned it a half turn every 10-15 seconds until it was empty. So much easier, no waste, and much safer! Please just spend the extra money to inject this, especially if it has a chance of working. $55 is much cheaper than $500 or $5000.

### ⭐⭐⭐⭐⭐ Review
*by M***A on November 29, 2024*

Worked out to my car AC. All the gas leaked within a week. Refilled the gas and is successfully cooling.. one more problem faces is connector didn't work out so opened the cap of tube and directly applied

### ⭐⭐⭐⭐⭐ Review
*by H***I on July 28, 2023*

عندي مكيف اعبية فريون مرتين في الصيف. فنيي التبريد مايبون يشتغلون لذلك شريت هالابره ورحت محل قطع غيار تبريد واخذت فريون وساعه وكذلك محول لان اللي اللي معه حجم صغير والفريون الجديد اكبر. المهم استعنت بمسدس السيليكون لاضغط المادة في المكيف وبعدها عبيت الفريون. والحمد لله الحين 4 شهور والمكيف بارد وممتاز. اتوقع اللي مايمدحونه يا انهم ماعرفوا يضيفونه او التهريب قوي

## Frequently Bought Together

- TSI Supercool 28399 HVAC Leak Stop Syringe with Application Hose, 2 fl. oz. (60 mL)
- InterDynamics Certified A/C Pro Car Air Conditioner Leak Detector Dye, Detection UV Dye Detects Leaks in R-12 and R-134A Condition Systems, 1 Oz

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-27*