This is our complete guide to the best hvac stop leak. In Fact, In picking this hvac stop leak, we have considered a lot of factors to find the best out of them. Let us help you make your decision with this hvac stop leak that we have personally reviewed for you.

We have spent around 35 hours to find the right option for you and based on our research 2 Rolls Waterproof Patch and Seal Tape Water Barrier Tape Stretchy Sealing Tape for Stop Leak Repair on Pipes, Chimney, Roof, Boat and HVAC, Black and White, 4 Inches x 5 Feet is our top pick for you. This is one of the top products currently possible in the market. However, if you don’t want to spend extra then we have another great option for you is TSI Supercool 28399 HVAC Leak Stop Syringe with Application Hose, 2 fl. oz. (60 mL). Below is a review of some of the best hvac stop leak, together with their extra features and functions. Listed below are some hvac stop leak for your budget.

Best hvac stop leak

Image
Product Title
Score

Nu Calgon 4050-08 EasySeal Direct Inject (Packaging may vary)
9.9

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
9.6

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
9.2

TSI Supercool 28399 HVAC Leak Stop Syringe with Application Hose, 2 fl. oz. (60 mL)
8.7

Rectorseal 45322 Freeze Leak Repair
8.3

Comstar A/C Zero Leak, 4 oz. Plastic Container (90-700)
8.1

2 Rolls Waterproof Patch and Seal Tape Water Barrier Tape Stretchy Sealing Tape for Stop Leak Repair on Pipes, Chimney, Roof, Boat and HVAC, Black and White, 4 Inches x 5 Feet
7.6

XFasten Waterproof Patch and Seal Tape, Black, 4-Inch by 10-Foot Roof and Gutter Rubber Repair Tape for Stop Leak Repair on Gutter, Roof, Boat, Pool Liner and HVAC – Waterproof and Puncture-Resistant
7.4

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
7.2

Leak Saver: Leak Shot HVAC Pro - Condensate Drain Blaster Sealant Injector - Non-Contaminating CO2 Cartridges - for AC and Mini Splits - Systems Up to 5 Tons
6.7

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


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

$66.99  in stock
20 new from $66.99
Amazon.com
as of March 18, 2024 7:34 pm

Features

  • 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 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


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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

$94.95  in stock
2 new from $94.95
Free shipping
Amazon.com
as of March 18, 2024 7:34 pm

Features

  • 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

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


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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

$36.95  in stock
2 new from $36.95
Free shipping
Amazon.com
as of March 18, 2024 7:34 pm

Features

  • 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.

TSI Supercool 28399 HVAC Leak Stop Syringe with Application Hose, 2 fl. oz. (60 mL)


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TSI Supercool 28399 HVAC Leak Stop Syringe with Application Hose, 2 fl. oz. (60 mL)

$22.33  in stock
1 used from $20.44
Free shipping
Amazon.com
as of March 18, 2024 7:34 pm

Features

  • 2-Ounce Syringe Treats Up to 6 Ton Units.Fit Type: Universal Fit
  • Permanently Seals Leaks in A/C and Refrigeration Systems
  • Does Not Contain Polymers, Will Not Harm A/C System Or Components
  • Additive Package Protects Against Future Corrosion
  • Compatible with All Lubricants and Refrigerants

Rectorseal 45322 Freeze Leak Repair


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Rectorseal 45322 Freeze Leak Repair

$89.10
$61.60
 in stock
3 new from $60.95
Free shipping
Amazon.com
as of March 18, 2024 7:34 pm

Features

  • APPLICATION: AC Leak Freeze is the ideal product for A/C unit repair and refrigeration repair; AC Leak Freeze will stop leaks of refrigerant gas in HVACR air conditioning and refrigeration systems in homes and commercial buildings
  • EASY TO APPLY: Single use, disposable AC leak freeze syring; ready to use and safe for HVAC systems; OEM approved and easy to apply
  • STOP LEAKS PERMANENTLY: AC leak freeze will stop leaks of refrigerant gas in HVACR air conditioning and refrigeration systems in homes and commercial buildings; AC leak freeze revitalizes AC and refrigeration systems by permanently sealing small, hard-to-find micro leaks
  • SPECIFICATIONS: 1.5 oz leak freeze cartridge with magic frost and 1/4" adapter; polymer free, non-flammable and non-toxic; OEM approved and safe for HVAC systems
  • FOR THE TRADESMAN: RectorSeal is recognized as a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets

Comstar A/C Zero Leak, 4 oz. Plastic Container (90-700)


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Comstar A/C Zero Leak, 4 oz. Plastic Container (90-700)

$15.89
$15.12
 in stock
2 new from $15.12
Free shipping
Amazon.com
as of March 18, 2024 7:34 pm

Features

  • 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

2 Rolls Waterproof Patch and Seal Tape Water Barrier Tape Stretchy Sealing Tape for Stop Leak Repair on Pipes, Chimney, Roof, Boat and HVAC, Black and White, 4 Inches x 5 Feet


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2 Rolls Waterproof Patch and Seal Tape Water Barrier Tape Stretchy Sealing Tape for Stop Leak Repair on Pipes, Chimney, Roof, Boat and HVAC, Black and White, 4 Inches x 5 Feet

 out of stock
Amazon.com
as of March 18, 2024 7:34 pm

XFasten Waterproof Patch and Seal Tape, Black, 4-Inch by 10-Foot Roof and Gutter Rubber Repair Tape for Stop Leak Repair on Gutter, Roof, Boat, Pool Liner and HVAC – Waterproof and Puncture-Resistant


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XFasten Waterproof Patch and Seal Tape, Black, 4-Inch by 10-Foot Roof and Gutter Rubber Repair Tape for Stop Leak Repair on Gutter, Roof, Boat, Pool Liner and HVAC – Waterproof and Puncture-Resistant

$12.99  in stock
Amazon.com
as of March 18, 2024 7:34 pm

Features

  • Black seal repair tape that provides instant watertight sealing on all surface types. Simply slap on any leaks for a waterproof and weather-resilient repair!
  • Waterproof silicone-butyl adhesive enables this black shield patch tape to REPAIR SURFACES THAT ARE SUBMERGED IN WATER.
  • The tough rubber backing on this waterproof tape can be installed easily without mess, EMPOWERING the average American with LITTLE TO NO EXPERIENCE in home repair to fix pipes, boats, RV and roofing quickly with PROFESSIONAL-GRADE results!
  • Flexible rubber surface resists tears, heat and frost- making it a great OUTDOOR Stop Leak Tape even on extreme temperatures (-30F to 374F).
  • This swift response patch and seal leak tape can be applied to all weather types and on smooth or rough surfaces for long-term repairs.

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


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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

$46.95  in stock
2 new from $46.95
Free shipping
Amazon.com
as of March 18, 2024 7:34 pm

Features

  • 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")

Leak Saver: Leak Shot HVAC Pro – Condensate Drain Blaster Sealant Injector – Non-Contaminating CO2 Cartridges – for AC and Mini Splits – Systems Up to 5 Tons


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Leak Saver: Leak Shot HVAC Pro - Condensate Drain Blaster Sealant Injector - Non-Contaminating CO2 Cartridges - for AC and Mini Splits - Systems Up to 5 Tons

 out of stock
Amazon.com
as of March 18, 2024 7:34 pm

Features

  • The Strong and Safe Choice: We’ve redesigned Leak Shot HVAC Pro with reinforced metal construction so you can confidently and safely unclog air conditioner and refrigeration condensate drain lines and inject Leak Saver Direct Inject sealants (SEALANT SOLD SEPARATELY) with the same tool.
  • Kit Includes: Leak Shot 2.0 Professional Grade Reinforced Injection Gun, 3x Leak Shot Refrigerant Grade CO2 Cartridges (multiple shots per cartridge), 3 Rubber Condensate Line Adapters (1/2”, 3/4”, and 7/8”), Extension Hose.
  • Non-Contaminating CO2 Cartridges: Our cartridges are specially formulated to not contaminate HVAC and refrigeration systems. Please only refill with our Leak Shot CO2 Refrigerant Grade refills. Other CO2 cartridges may not work with our Leak Shot Professional Gun.
  • Made By HVAC Professionals: Our company was founded and run by EPA card holding HVAC techs. We are bringing you the same products we use in our own jobs. Made in the USA.
  • 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 above were some of the best hvac stop leak for you in your budget, so you can’t go wrong with your purchase. If you didn’t find your desired one then check out 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 is also the recommended item in the store.