---
product_id: 45977575
title: "Leak Saver Direct Inject AC Leak Sealer | AC Stop Leak for Most HVAC Systems Up to 5 Tons | Works with All Systems & AC Refrigerants | Made in the USA"
price: "NT$2582"
currency: TWD
in_stock: true
reviews_count: 13
url: https://www.desertcart.tw/products/45977575-leak-saver-direct-inject-ac-leak-sealer-ac-stop-leak
store_origin: TW
region: Taiwan
---

# Easy direct injection Works with all refrigerants & systems Permanent leak sealant Leak Saver Direct Inject AC Leak Sealer | AC Stop Leak for Most HVAC Systems Up to 5 Tons | Works with All Systems & AC Refrigerants | Made in the USA

**Price:** NT$2582
**Availability:** ✅ In Stock

## Summary

> 🧊 Seal the deal on leaks before they cool your vibe!

## Quick Answers

- **What is this?** Leak Saver Direct Inject AC Leak Sealer | AC Stop Leak for Most HVAC Systems Up to 5 Tons | Works with All Systems & AC Refrigerants | Made in the USA
- **How much does it cost?** NT$2582 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/45977575-leak-saver-direct-inject-ac-leak-sealer-ac-stop-leak)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Pros:** Over 4 million units sold since 2015, proudly made in the USA with a satisfaction guarantee.
- • **Seal Leaks Permanently:** Stops small refrigerant leaks fast, saving costly repairs.
- • **Effortless Installation:** Inject directly with manifold gauges or Leak Shot kits—no mess, no hassle.
- • **Safe for All Components:** 100% safe on valves, hoses, expansion devices, and oils—protect your system integrity.
- • **Universal Compatibility:** Works seamlessly with all HVAC & automotive AC systems and refrigerants (except ammonia).

## Overview

Leak Saver Direct Inject AC Leak Sealer is a professional-grade, permanent solution for small refrigerant leaks in HVAC and automotive AC systems up to 5 tons. Compatible with nearly all refrigerants and oils, it uses a moisture-activated formula that circulates safely and seals leaks without system damage. Easy to install with standard tools or Leak Shot kits, it’s trusted by HVAC pros nationwide with over 4 million units sold since 2015.

## Description

Buy Leak Saver Direct Inject AC Leak Sealer | AC Stop Leak for Most HVAC Systems Up to 5 Tons | Works with All Systems & AC Refrigerants | Made in the USA: Air Conditioning Line Repair Tools - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Fantastic product that can save you money in repairs if you know what you are doing. - I have used this product on my home air conditioning central air unit which is over 50 years old and it has stopped the leak in my coil and I have used their other product in my refrigerator and it has also worked fantastic.
Review: Very easy to use. - So far this has been in my AC unit for two weeks and no leaks. Working great so far.

## Features

- STOP LEAKS PERMANENTLY - The Leak Saver can permanently seal small refrigerant leaks where the complete refrigerant charge is not lost within 7 days. When a leak occurs, the Leak Saver reacts with the air and moisture at the leak site to permanently seal the leak. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks
- WORKS WITH ALL SYSTEMS INCLUDING CARS - Our product is compatible with all systems, refrigerants (except ammonia), car refrigerants, and oils. It is great for central air conditioners, automotive air conditioners, refrigerators, ductless mini-splits, heat pumps, geothermal heat pumps, commercial refrigeration systems, micro channel coils and more. It also works with all refrigerants including R410A Freon, R22 and replacements, R134A , r1234yf, R404A, R290, R600a, and more
- STRAIGHTFORWARD INSTALLATION - No more fussing with messy syringes, hoses, or pressurized cans. The Leak Saver HVAC sealant injects directly and easily into the system with a basic manifold gauge set or even easier with our Leak Shot Injection Kits. NOTE: for automotive systems, you will still need the standard 134A to 1/4” charging adapter. Mini-splits may require a 5/16” to 1/4” charging adapter. You can see our straightforward installation videos below
- SAFE FOR ALL TOOLS AND PARTS - Our HVAC leak sealer is safe for all manifold gauges, hoses, expansion valves (TXVs, TEVs, capillary tubes, etc), Schrader valves, and anything needed to service your system. Adapter required for mini splits (5/16" to 1/4") and automotive systems ( 134A to 1/4")
- THE MOST TRUSTED - The numbers don’t lie! With more than 4,000,000 units sold of our air conditioner leak sealer formula since 2015, we are the most trusted leak sealant among HVAC professionals. Proudly made in the USA. We stand 100% behind the quality of our products. If for any reason you are not satisfied with your order, reach out to us and we will make it right

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B071VMXMLS |
| Best Sellers Rank | #2,053 in Automotive (See Top 100 in Automotive) #9 in Air Conditioning Tools & Equipment |
| Brand | Leak Saver |
| Customer Reviews | 4.3 4.3 out of 5 stars (2,284) 4.3 out of 5 stars |
| Date First Available | May 11, 2017 |
| Item Model Number | LS-05 |
| Item Weight | 3.2 ounces |
| Manufacturer | Leak Savers |
| Manufacturer Part Number | LS-05 |
| Product Dimensions | 6.5 x 9.6 x 0.6 inches |

## Images

![Leak Saver Direct Inject AC Leak Sealer | AC Stop Leak for Most HVAC Systems Up to 5 Tons | Works with All Systems & AC Refrigerants | Made in the USA - Image 1](https://m.media-amazon.com/images/I/71IMrHwHuFL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Will this work with my system?**
A: The Leak Saver works with all air conditioner and refrigeration systems. It is compatible with all refrigerants (except ammonia) and is compatible with all oils.

**Q: How does the Leak Saver work?**
A: After injection, The Leak Saver sealant circulates throughout the system with the refrigerant. If there is a small leak, the sealant reacts with the moisture and oxygen at the leak site to form a permanent "scab-like" seal.

**Q: What do I need to install the Leak Saver?**
A: To inject the Leak Saver, you will need either a basic set of manifold gauges or our Leak Shot injector. When using it with automotive systems, you will need a 134a to 1/4” adapter. Ductless mini-split systems may require a 5/16” to 1/4” adapter.

**Q: What size leak will the Leak Saver seal?**
A: The Leak Saver is able to seal small refrigerant leaks where the complete charge is not lost within 7 days. If this is not possible, your leak is too large to be repaired with Leak Saver.

**Q: What do I do if it doesn’t work?**
A: We stand behind the effectiveness. If you are not completely satisfied, please reach out to us directly and we will make it right. With more than 4 million units of this formula sold since 2015, we have a strong track record of effectiveness.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fantastic product that can save you money in repairs if you know what you are doing.
*by K***W on August 5, 2026*

I have used this product on my home air conditioning central air unit which is over 50 years old and it has stopped the leak in my coil and I have used their other product in my refrigerator and it has also worked fantastic.

### ⭐⭐⭐⭐⭐ Very easy to use.
*by A***R on August 26, 2026*

So far this has been in my AC unit for two weeks and no leaks. Working great so far.

### ⭐⭐⭐⭐⭐ Impressive Stuff! (Review updated for 1 year update)
*by B***N on September 26, 2025*

I’ve had a small leak that’s been getting worse over the past couple of years. Started as having to top off every season, then last year it got to where I was starting to lose 1-2lbs every 2 months. This year I decided to buy my own refrigerant and put this leak stop stuff in back in the beginning of April knowing that AC season was upon us. All I’ve got to say is WOW! I haven’t lost any refrigerant since I added this stuff and it’s now the end of September. It got me through the whole summer! Now I’ll be interested to see if the system loses any of its charge when it’s not being used over the winter, which is what’s unfortunately happened over the past 3 winters. Hopefully this time there’ll be no freeze ups when I turn it on next spring… we shall see! **April 16, 2026 update**- It’s now been a year. So far we’ve had 10 days of 80’F+ with 3 of those days being over 90’F, including today, and the AC hasn’t struggled at all. Intermittent flashing noises near the indoor unit did return on the first run of the season about 3 weeks ago, but it only happens every 30 seconds or so. That tells me that it likely lost a few ounces of refrigerant while it wasn’t running over the winter, but it’s not made any impact on its ability to cool and is much better than the usual 2-3lbs of refrigerant it would’ve lost over the winter in years past. Performance is still the same as it was right after I added this stuff along with 3lbs of refrigerant last April. Delta T is averaging 16’F-18’F and cooling cycles are 10-20 minutes. It also still manages to cool the house down 3’F in less than an hour when my thermostat switches the temperature to sleep mode at night. I’m very pleased with how well this product worked and that I seemingly no longer have to deal with a frozen system on the first hot day of the year.

## Frequently Bought Together

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-09-07*