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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. Mini-splits may require a 5/16” to 1/4” charging adapter. Made by hvac professionals: and used by them, Refrigeration Systems, Commercial Unit Coolers, Heat Pumps, it’s perfect for use in Split Systems, and more.
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. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks. Note: for automotive systems, you will still need the standard 134A to 1/4” charging adapter. Your satisfaction is our priority: we’re so sure this will seal your next leak that if it doesn’t, contact us for another at no cost must be installed by certified HVAC techs.

It also works with all refrigerants including R410A Freon, R22 and replacements, refrigerators, car and automotive air conditioners, and oils. With added uv dye for finding large leaks: seal it or find it! If you have a leak that is simply too large for leak sealants to seal, the added UV Dye will light up brightly at the leak site when using a UV flashlight.
When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks. If for any reason you are not satisfied with your product, please contact us and we will make it right. Mini-splits may require a 5/16” to 1/4” charging adapter. More than 3 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. When a leak occurs, the leak Saver reacts with the air and moisture at the leak site to permanently seal the leak.

4 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! Works with all systems and refrigerants : the leak saver ultimate is compatible with all systems, ductless mini-splits, R290, refrigerants except ammonia, and oils.
It is great for central air conditioners, r22 and replacements, R404A, R1234yf, car and automotive air conditioners, heat pumps, R134A, micro channel coils and more. Note: for automotive systems, hoses, you will still need the standard 134A to 1/4” charging adapter. 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.







1. Leak Saver
#ad
2022 Updated Sealant Formula for Most HVAC Systems Up to 5 Tons, Made in The USA, Leak Saver Direct Inject Refrigerant Leak Sealer
#adLeak Saver #ad - It’s similar to how blood in your body reacts to a cut. 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. When a leak occurs, the leak Saver reacts with the air and moisture at the leak site to permanently seal the leak.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. Mini-splits may require a 5/16” to 1/4” charging adapter. Made by hvac professionals: and used by them, Refrigeration Systems, Commercial Unit Coolers, Heat Pumps, it’s perfect for use in Split Systems, and more.
More information #ad
Super concentrated and made to work with all types of refrigerants, it’s compatible with all types of refrigerants and oils except ammonia. The easiest injection method: no more fussing with messy syringes, hoses, or pressurized cans. 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. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks. Note: for automotive systems, you will still need the standard 134A to 1/4” charging adapter. Your satisfaction is our priority: we’re so sure this will seal your next leak that if it doesn’t, contact us for another at no cost must be installed by certified HVAC techs.
Brand | Leak Saver #ad |
Manufacturer | Leak Savers #ad |
Height | 0.6 Inches |
Length | 6.5 Inches |
Weight | 0.2 Pounds |
Width | 9.6 Inches |
Part Number | LS-05 |
Model | LS-05 |
More information #ad
2. Leak Saver
#ad
Refrigeration, Leak Saver Direct Inject UV, Refrigerant Leak Sealer with Added UV Dye to Detect Large Leaks, for AC, and Automotive Systems Up to 5 Tons, Compatible with All Refrigerants
#adLeak Saver #ad - Note: for automotive systems, you will still need the standard 134A to 1/4” charging adapter. 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. The easiest injection method: no more fussing with messy syringes, hoses, or pressurized cans.It also works with all refrigerants including R410A Freon, R22 and replacements, refrigerators, car and automotive air conditioners, and oils. With added uv dye for finding large leaks: seal it or find it! If you have a leak that is simply too large for leak sealants to seal, the added UV Dye will light up brightly at the leak site when using a UV flashlight.
More information #ad
Your satisfaction is our priority: we stand behind the effectiveness 100%. It is great for central air conditioners, R404A, R290, R600a, geothermal heat pumps, ductless mini-splits, and more. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks. If for any reason you are not satisfied with your product, please contact us and we will make it right. Mini-splits may require a 5/16” to 1/4” charging adapter. More than 3 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. When a leak occurs, the leak Saver reacts with the air and moisture at the leak site to permanently seal the leak.
Brand | Leak Saver #ad |
Manufacturer | Leake Savers #ad |
Height | 0.6 Inches |
Length | 6.5 Inches |
Weight | 100 Kilograms |
Width | 9.6 Inches |
Part Number | LS-05UV |
Model | LS-05UV |
More information #ad
3. Leak Saver
#ad
Compatible with All Refrigerants, Made in The USA, Refrigeration, Leak Saver Direct Inject Ultimate 3-in-1 Leak Sealant with Moisture Remover and UV Dye for AC, and Automotive Systems up to 5 Tons
#adLeak Saver #ad - It also works with all refrigerants including R410A Freon, geothermal heat pumps, refrigerators, commercial refrigeration systems, R600a, and more. Your satisfaction is our priority: we stand behind the effectiveness 100%. When used for preventative maintenance, the active ingredient circulates safely in the system to seal future leaks.4 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! Works with all systems and refrigerants : the leak saver ultimate is compatible with all systems, ductless mini-splits, R290, refrigerants except ammonia, and oils.
More information #ad
When a leak occurs, the leak Saver reacts with the air and moisture at the leak site to permanently seal the leak. If for any reason you are not satisfied with your product, please contact us and we will make it right. It is great for central air conditioners, r22 and replacements, R404A, R1234yf, car and automotive air conditioners, heat pumps, R134A, micro channel coils and more. Note: for automotive systems, hoses, you will still need the standard 134A to 1/4” charging adapter. 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.
Brand | Leak Saver #ad |
Manufacturer | Leak Saver #ad |
Part Number | LS-ULT |
More information #ad
4. Nu Calgon
#ad
One Size Treats Systems 2 to 7.5 Tons, Nu-Calgon 4050-11 EasySeal Direct Inject-UV Dye Refrigerant Leak Sealant
#adNu Calgon #ad - One time use. Clear tube so you can see the sealant go in. Concentrated formula means less material in system. No need to pump down R-410A units. Leak Sealant. Perfect for split systems, microchannel coils, heat pumps, packaged units, and mini splits.More information #ad
Brand | Nu Calgon #ad |
Manufacturer | Nu-Calgon Wholesaler, Inc. #ad |
Height | 1.97 Inches |
Length | 5.91 Inches |
Weight | 0 Pounds |
Width | 3.94 Inches |
Part Number | 4050-11 |
Model | 4050-11 |
More information #ad
5. Rectorseal
#ad
Rectorseal 45316 AC Freeze PRO Nano Leak Sealer, 1.5 oz, Blue
#adRectorseal #ad - Restore AC performance quickly. Low loss safety fitting. Triple action sealant. Stop refrigerant leaks permanently. Safe delivery tool.More information #ad
Brand | Rectorseal #ad |
Manufacturer | Rectorseal #ad |
Height | 10 Inches |
Length | 2 Inches |
Weight | 0 Pounds |
Width | 1.5 Inches |
Part Number | 45316 |
Model | 45316 |
More information #ad
6. Blue Devil
#ad
4.5 Ounce, BlueDevil Products Red Angel 00222 A/C Stop Leak & Conditioner
#adBlue Devil #ad - Will not clog or damage the A/C System or Recovery Unit. Guaranteed Permanent Seal. Guaranteed permanent seal. Now with uv Dye for leak detection.More information #ad
Brand | Blue Devil #ad |
Manufacturer | Red Angel #ad |
Height | 5.5 Inches |
Length | 2.25 Inches |
Weight | 0.28 Pounds |
Width | 2.25 Inches |
Part Number | 00222 |
Model | 00222 |
Warranty | limited |
More information #ad
7. InterDynamics
#ad
InterDynamics Car Air Conditioner, Certified A/C Pro Refrigerant Leak Stop Kit for R134A Car Air Conditioners, 3 Oz Each
#adInterDynamics #ad - Safe for all R-134a systems. Seals metal leaks in condensers, evaporators, accumulators, receiver and driers. Professional grade. Comes with recharge hose. Seals rubber leaks in hoses O-rings and gaskets.More information #ad
Brand | InterDynamics #ad |
Manufacturer | InterDynamics #ad |
Part Number | CERT325-6 |
Model | InterDyn - CERT325-6B |
Warranty | Manufacturer’s warranty can be requested from customer service. |
More information #ad
8. Supercool
#ad
12 oz., Refrigerant, 134A Plus Stop Leak
#adSupercool #ad - B>price for: each includes: stop leak application: automotive applications container type: Can Container Size: 12 oz. B>item: automotive refrigerant refrigerant Type: 134A Plus Stop Leak Country of Origin subject to change: United States.More information #ad
Brand | Supercool #ad |
Manufacturer | SUPERCOOL #ad |
Weight | 0.75 Pounds |
Part Number | 24049 |
More information #ad
9. Comstar
#ad
Made in USA, ComStar A/C Zero-Leak, Seals Leaks Instantly, Polymer-Free, Non-Hardening, Eco-Friendly, Permanent "Stop Leak" for A/C Systems, 4 Ounces 90-700
#adComstar #ad - Is a specially developed product for preventing minor leaks in evaporators, condensers, gaskets, and seals. Designed to not harm A/C systems with non-hardening, polymer-free characteristics.More information #ad
Compatible with poe-based, PAG-based, and mineral-oil-based mobile AC lubricants. Used for preventive maintenance and left in an operating system. Environmentally safe & suitable for use in automotive, commercial, and residential A/C applications.Brand | Comstar #ad |
Manufacturer | ComStar International, Inc. #ad |
Weight | 0.25 Pounds |
Part Number | 90-700 |
Model | 90-700 |
Warranty | No WARRANTY |
More information #ad
10. ZeroR
#ad
ZeroR A/C Pro R134a Super Seal Stop Leak | Seals Metal & Rubber Air Conditioning Leaks | Installation Can Tap Included
#adZeroR #ad - Amount of stop leak is enough for any vehicle sized system and smaller with a small amount of R-134a used as a propellent into the system. 3oz - can size is 3oz by weight. Legal - r134a refrigerant for MVAC use in 3oz Self Sealing Cans.More information #ad
Also works on rubber parts like hoses, gaskets. Can tap - comes with it's own can tap that will not be reused. Super seal - ac pro made by interdynamics idq seals metal leaks in condensers, evaporators, O-rings, accumulators, receiver and driers. No additional tools required! Safe - safe for all r-134A systems and Compatible with all lubricants.Brand | ZeroR #ad |
Manufacturer | ZeroR #ad |
Part Number | 107SS |
More information #ad