Top 10 Best Refrigerant Leak Sealer – To Buy Online

1. Leak Saver: Direct Inject UV – Dye Detects Large Leaks for Repair – Refrigerant Leak Sealer – For Air Conditioner and Refrigeration Systems Up to 5 Tons – USA Made

  • Now with added UV dye to detect large leaks. Permanently seals refrigerant leaks and prevents future leaks for systems up to 5 Tons.
  • Safe for all air conditioner and refrigeration systems, valves, and tools. Compatible with all types of refrigerants and oils
  • Injects easily and directly. No more pump downs, fussy syringes, or pressure sensitive cans; UV dye detects large leaks requiring repair
  • Designed and used by HVAC professionals, our formula has been proven through over a decade of research
  • NOTE: For use in automotive air conditioners, you will also need a 134A quick connect adapter and a manifold gauge with 1/4″ hose connections.

2. Elitech ILD-200 Infrared Refrigerant Leak Detector HVAC Halogen Gas AC Sniffer

  • With the latest and most innovative infrared sensor, its sensor life extends enormously for a maximum of 10 years. It triggers on all halogenated refrigerants much more precisely than traditional corona sensors and moderate heat-diode sensors.
  • 3 Selectable Sensitivity Levels -High/Medium/Low; With a maximum sensitivity up to 0.14oz/yr.
  • The world’s first TFT screen advanced leak detector animates leakage, sensitivity, battery levels and sensor faulty indicators and presents more clear and easy readings.
  • Pressing PEAK button to mark the maximum leakage value during measurements.
  • Responds to all kinds of halogenated refrigerants and meets EN14624, SAE-162, SAE-2791 and SAE-2913 standards.【Free return or exchange within 3 months!】 24/7 US Technician Support via Email and Phone.

3. Inficon Refrigerant Leak Detector, Model:705-202-G1

  • Sensitivity of 0.25 oz./year (7 g/year)
  • Detects all CFCs, HCFCs, HFCs, and HFOs. A2L Certified
  • Proven heated diode sensor for reliable leak checking
  • Sensor Life: 100 hours
  • No false alarms from soap solutions
  • Automatic background adjustment (“zeroing”)
  • Runs on two D-cell alkaline batteries
  • Rugged carrying case included
  • Made in the United States, US Technician Support via Email and Phone

4. InterDynamics Certified AC Pro Car Air Conditioner R134A Refrigerant Stop Leak Kit, for Rubber and Metal Leaks in O Rings and Hoses, 3 Oz, CERT325-6

  • 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

5. Nu-Calgon 4050-11 EasySeal Direct Inject-UV Dye Refrigerant Leak Sealant, Treats 1.5-5 Tons

  • Concentrated formula means less material in system
  • Clear tube so you can see the sealant go in
  • No need to pump down R-410A units
  • Perfect for split systems, heat pumps, microchannel coils, packaged units, and mini splits
  • One time use
  • Leak Sealant

6. Rectorseal 45302 Freeze Leak Repair, 0.5 Oz, Red

  • AC leak freeze permanently seals leaks in air conditioning and refrigeration systems
  • Will continue to seal additional leaks for up to 1 year that meet testing specifications
  • Does not contain polymers
  • Tested to be non-clogging to a/C compressor and recovery unit
  • Ideal for preventive maintenance and leak protection
  • This is an aftermarket of generic part

7. Leak Saver: Direct Inject Ultimate 3-in-1 Leak Sealant with Moisture Remover and UV Dye for AC, Refrigeration, and Automotive Systems up to 5 Tons – Compatible with All Refrigerants – Made in The USA

  • 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 : The Leak Saver Ultimate is compatible with all systems, refrigerants (except ammonia), and oils. It is great for central air conditioners, car and 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.
  • YOUR SATISFACTION IS OUR PRIORITY: We stand behind the effectiveness 100%. If for any reason you are not satisfied with your product, please contact us and we will make it right.

8. Leak Saver: Direct Inject – Refrigerant Leak Sealer – For Systems Up to 5 Tons – Compatible With Most Air Conditioner and Refrigeration Systems – Proudly Made in the USA

  • Permanently seals refrigerant leaks and prevents future leaks for systems up to 5 tons. Can typically seal leaks in systems where the refrigerant charge is not lost within 72 hours.
  • Safe for all air conditioner and refrigeration systems, valves, and tools. Compatible with all types of refrigerants and oils (except ammonia).
  • Injects easily and directly. No more pump downs, fussy syringes, or pressure sensitive cans
  • Designed and used by HVAC professionals, our formula has been proven over a decade of research.
  • NOTE: For use in automotive air conditioners, you will also need a 134A quick connect adapter and a manifold gauge with 1/4″ hose connections.

9. Leak Saver: Direct Inject Ultimate 3-in-1 Leak Sealant with Moisture Remover and UV Dye for AC, Refrigeration, and Automotive Systems up to 5 Tons – Compatible with All Refrigerants – Made in The USA

  • 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 : The Leak Saver Ultimate is compatible with all systems, refrigerants (except ammonia), and oils. It is great for central air conditioners, car and 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.
  • YOUR SATISFACTION IS OUR PRIORITY: We stand behind the effectiveness 100%. If for any reason you are not satisfied with your product, please contact us and we will make it right.

10. Nu Calgon 4050-08 EasySeal Direct Inject (Packaging may vary)

  • Concentrated formula means less material in system
  • Clear tube so you can see the sealant go in
  • No need to pump down R-410A units
  • Perfect for split systems, heat pumps, microchannel coils, packaged units, and mini splits
  • One time use
  • Packaging may vary

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