Best 8 Ac Leak Stoppers of 2023

Remarkable ability to repair and seal leaks in condensers, evaporators, connection hoses, gaskets, and O-rings

Contains no solid or particulate matter that will clog the A/C system, or harm a recovery unit

Forms a chemical weld sealing leaks in both R-12 or R-134a systems

Safe to use and best of all — it’s a permanent seal

Guaranteed

Concentrated

No Pump Down

For use in heat pumps, split and mini split systems, packaged units, and micro-channel coils

Two sizes available 0-1.5 Ton, 1.5-5 Ton

Compatible with all refrigerants, except ammonia

Is a specially developed product for preventing minor leaks in evaporators, condensers, gaskets, and seals

Environmentally safe & suitable for use in automotive, commercial, and residential A/C applications

Designed to not harm A/C systems with non-hardening, polymer-free characteristics

Compatible with POE-based, PAG-based, and mineral-oil-based mobile AC lubricants

Used for preventive maintenance and left in an operating system

Seals metal leaks in condensers, evaporators, accumulators, receiver and driers

Seals rubber leaks in hoses O-rings and gaskets

Comes with recharge hose

Safe for all R-134a systems

Professional grade

The Easiest Injection Method: 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.

A Permanent Fix For Leaks: The Leak Saver can permanently seal small refrigerant leaks where the complete refrigerant charge is not lost within 72 hours. It’s similar 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.

Over Three Million Units Sold: With over 3 million units sold of this sealant formula since 2015, we are the most reliable leak sealant among HVAC professionals. Super concentrated and made to work with all types of refrigerants, it’s compatible with all types of refrigerants and oils (except ammonia).

Made By HVAC Professionals: And used by them. Use Leak Saver on the following systems: central AC, mini split AC, cassette AC, car, refrigerated truck, home refrigerator, commercial refrigerator, boat, rv, ice machine, refrigeration racks, chillers, refrigeration condenser, cold rooms, and more.

The Product We Trust: Our company is owned and operated by HVAC technicians. These are the same products we use in our own jobs, and stand behind them 100%.

Get Your A/C Back Up and Running: Help prevent system failure, preserve efficiency and eliminate corrosion by converting system moisture into synthetic oil.

For Most Air-Conditioning Systems: Use on mini-split units, heat pumps, packaged units, central A/Cs, coolers, microchannel coils, and automotive applications.

The Faster, More Economical Choice: By converting moisture into synthetic oil, it mixes with the already existing oil, for a simpler process than vacuum pumping.

The Perfect Prep for Leak Repairs: Use alone to dry your air-conditioning system or pair with our Leak Saver Direct Inject (our refrigerant leak sealer) for leaks.

The Product We Trust: Our company is owned and operated by HVAC technicians. These are the same products we use in our own jobs, and stand behind them 100%.

The Easiest Injection Method: 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.

3 In 1 Sealant + Moisture Remover + Uv Dye: Our proven leak sealant now includes moisture remover and UV dye for the complete system treatment! Now, you can seal your leak, remove system moisture, or find large leaks with the UV Dye...all in one easy to install package!

Over Three Million Units Sold Since 2015: 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.

Works With All Systems and Refrigerants: Compatible with all systems, refrigerants (except ammonia), and oils. Use it on the following systems: central AC, mini split AC, cassette AC, car, refrigerated truck, home refrigerator, commercial refrigerator, boat, rv, ice machine, refrigeration racks, chillers, refrigeration condenser, cold rooms, and more. It also works with all refrigerants including R410A Freon, R22 and replacements, R134A, R1234yf, R404A, R290, R600a, and more.

The Product We Trust: Our company is owned and operated by HVAC technicians. These are the same products we use in our own jobs, and stand behind them 100%.

Restore AC performance quickly

Stop refrigerant leaks permanently

Safe delivery tool

triple action sealant

Low loss safety fitting