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The Best refrigerant leak sealer r22 of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best refrigerant leak sealer r22 of 2022. Check our ranking below.

2,270 Reviews Scanned

Rank No. #1
Leak Saver Direct Inject UV - Refrigerant Leak Sealer with Added UV Dye to Detect Large Leaks - for AC, Refrigeration, and Automotive Systems Up to 5 Tons - Compatible with All Refrigerants
  • 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.
  • 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. 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.
  • 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.
  • COMPATIBLE WITH ALL SYSTEMS AND REFRIGERANTS: : The Leak Saver UV 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.
Rank No. #2
Leak Saver Direct Inject Ultimate 3-in-1 | AC Refrigerant Leak Sealer | with UV Dye & Moisture Remover | for Most HVAC Systems Up to 5 Tons - Professional AC Leak Sealer - AC Stop Leak
  • 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!
  • STOP LEAKS PERMANENTLY - The Leak Saver can permanently seal 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 & REFRIGERANTS 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")
Rank No. #3
Leak Saver Direct Inject AC Leak Sealer 3-Pack | AC Stop Leak for Most HVAC Systems Up to 5 Tons | Works with All Systems & AC Refrigerants | Made in The USA
  • 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
Rank No. #4
Leak Saver UV Dye (Dye Only, No Sealant) UV Refrigerant Leak Detection Dye for Automotive, Home, Commercial - Marine AC and Refrigeration up to 5 Tons
  • ULTRA BRIGHT UV DYE - The Leak Saver UV Dye Inject is the easiest way to inject UV leak detection dye into your air conditioning and refrigeration systems. No more messy syringes, hoses, or cans! Proudly MADE IN THE USA. The UV Dye illuminates brightly at the leak site when using a UV flashlight. Also visible to the naked eye. For best results, use a UV Flashlight in a shaded areas.
  • WORKS WITH ALL SYSTEMS - Our product 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.
  • 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. Compatible with all refrigerants including R22, 410A, 134A, 404A, 507A, 600A. Fully compatible with mineral, PAG, and ester oils.
  • WORKS IN AUTOMOTIVE SYSTEMS: 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.
  • DYE ONLY. There is no leak sealant in this product. For leak sealants, see our other products (Leak Saver Direct Inject and Leak Saver Direct Inject UV Refrigerant Leak Sealers). For use in automotive air conditioners, you will also need a 134A quick connect adapter and a manifold gauge with 1/4" hose connections. Safe for all manifold gauges, hoses, expansion valves (TXVs, TEVs, capillary tubes, etc), Schrader valves, and anything needed to service your system.
Rank No. #5
ComStar A/C Zero-Leak, Permanent "Stop Leak" for A/C Systems, Seals Leaks Instantly, Non-Hardening, Polymer-Free, Eco-Friendly, Made in USA, 4 Ounces (90-700)
  • 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
SaleRank No. #6
Aerosol A/C Leak Stop Seals, 4 Oz
  • Auto & Truck Maintenance
  • Package Dimensions: 21 H x 18 L x 18 W (inches)
  • Package Weight: 6.7 pounds
  • Country of Origin : United States
Rank No. #7
Elitech WJL-6000S Freon Leak Detector Halogen Gas Sniffer Refrigerant AC Leak Tester R22 R410A R134A R1234YF
  • Upgraded 5 LED indicators reflect gas concentration.
  • Freon leak detector triggers on R22, R134A, R404a, R410A and all halogenated refrigerants including HFCs, CFCs,HCFCs and blends.
  • 7 Adjustable Sensitivity; Maximum sensitivity is 0.21oz/yr.
  • Response within 3 seconds; Warm up in 6 seconds; Audible alarm and low battery indicator.
  • A flexible probe around 7.9-inch allows detections in difficult and hard-to-reach areas. 24/7 US Technician Support via Email and Phone.
Rank No. #8
CoolAir AC SmartSeal Quick Shot – OEM-Approved AC Leak Sealer & Cool Enhancer for HVAC/R Systems (up to 6 ton ) | Reusable Injector Hose Included | Compatible with Refrigerants (R-410A, R-134a, R-22)
  • NON-CLOGGING NON-POLYMER FORMULA is proven and engineered for even the harshest conditions and extreme vibrations. Seals leaks effectively and permanently the first time, every time.
  • VERSATILE - AC SMARTSEAL QuickShot is not activated by oxygen or moisture and its mechanical action works perfectly with all types of refrigerants.
  • OEM APPROVED - AC SMARTSEAL QuickShot is OEM approved to ensure safe and effective of refrigerant leaks and is also ideal for preventative refrigerant leak mitigation or direct repairs.
  • EFFECTIVE - one AC SMARTSEAL QuickShot of 2 ounces finds and repairs leaks on air conditioning and refrigeration systems of up to 10 tons.
  • WORKS EVERYWHERE - AC SMARTSEAL QuickShot works for commercial, residential, industrial, and transport systems of all types.
Rank No. #9
A/C Pro ACP-105 Refrigerant With Max-Seal (12 ounces)
  • Restores lost refrigerant and oil in automotive A/C systems
  • Contains MAX-SEAL 2-in-1 Chemistry
  • Sealing agents help stop leaks and re-condition rubber O-rings, gaskets and hoses
  • No corrosion additives help reduce moisture and acid buildup to shield against metal leaks
  • Three easy steps
Rank No. #10
Leak Saver R290 for HVAC for Use in an 8oz Self-Sealing Container (3 Pack)
  • This product is approved by the US EPA with special use restrictions (defined in 40 CFR Part 82.172) for new food refrigerators, food freezers, stand-alone units, some industrial applications, and new room air conditioners clearly identified for use with this refrigerant, among other uses as approved by the EPA.
  • This refrigerant may only be used in new equipment specifically designed and identified by the EPA for R-290 refrigerant use, and may not be used as a conversion or "retrofit" refrigerant for existing equipment

Last update on 2025-04-30 / Affiliate links / Images from Amazon Product Advertising API

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