Direct Inject Small System
Direct Inject Small System
Direct Inject Small System
Direct Inject Small System
Load image into Gallery viewer, Direct Inject Small System
Load image into Gallery viewer, Direct Inject Small System
Load image into Gallery viewer, Direct Inject Small System
Load image into Gallery viewer, Direct Inject Small System

Direct Inject Small System

Regular price $24.95

Unit price per 

LEAK SAVER DIRECT INJECT SMALL SYSTEM - FOR SYSTEMS UP TO 1 TON (12,000 BTU, 3.5kW) - Perfect for Small Appliances

  • THE MOST TRUSTED - The numbers don’t lie! With more the 3,000,000 units sold of this sealant formula since 2015, we are the most trusted leak sealant among HVAC professionals. Proudly made in the USA. We believe in the effectiveness of our product and stand behind it 100%.

  • PERMANENTLY SEALS LEAKS - The Leak Saver can permanently seal small refrigerant leaks where the complete refrigerant charge is not lost within 72 hours. It works similarly to how blood in your body reacts to a cut. 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. If you suspect your system to have moisture, we recommend that you to first inject our Leak Saver Dry.

  • WORKS WITH ALL SYSTEMS - Our product is compatible with all systems, refrigerants (except ammonia), and oils. It is great for small central air conditioners, refrigerators, ductless mini-splits, dehumidifiers, 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 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 - The Leak Saver is safe for all manifold gauges, hoses, expansion valves (TXVs, TEVs, capillary tubes, etc), Schrader valves, and anything needed to service your system.

  • REAL USA HVAC TECH SUPPORT - We are an American company owned and operated by EPA card holding HVAC techs. All questions are directly answered by us. If you need any support, please reach out to us HERE.

  • FREE SHIPPING to the continental USA.

Leak Saver Direct Inject Product Data Sheet

Open tab

Installation Methods

Open tab
These installation methods can be used for all of our Direct Inject products


1. Leak Shot HVAC Injection with Refrigerant Grade CO2

Get your Leak Shot HVAC by clicking HERE


2. Injection with High Side


3. Charge in with Refrigerant


4. Leak Shot Auto

The Leak Saver 100% Satisfaction Guarantee

Open tab

Leak Saver 100 Satisfaction Guarantee

As a small company, EVERY SINGLE CLIENT is important to us. Our sealant formula has been proven in millions of applications since 2015 and we stand behind it 100%. Your satisfaction is our priority! 

If you have any issues with our products, please don't hesitate to reach out to us at or fill out the form below. We will make it right!

Close (esc)


Use this popup to embed a mailing list sign up form. Alternatively use it as a simple call to action with a link to a product or a page.

Age verification

By clicking enter you are verifying that you are old enough to consume alcohol.


Shopping Cart

Your cart is currently empty.
Shop now