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

We have spent around 45 hours to find the right option for you and based on our research InterDynamics LDS1DC Air Conditioning Tool 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 Nu Calgon 4050-08 EasySeal Direct Inject (Packaging may vary). Below is a review of some of the best hvac leak sealer, together with their extra features and functions. Listed below are some hvac leak sealer for your budget.

Best hvac leak sealer

Image
Product Title
Score

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 (One Pack)
9.7

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 Ultimate - 3-in-1 Leak Sealant with Moisture Remover and UV Dye for Air Conditioner, Heat Pumps and More - Works on most HVAC and Automotive Systems - Proudly Made in the USA
9.3

Nu Calgon 4050-08 EasySeal Direct Inject (Packaging may vary)
8.7

Rectorseal 45322 Freeze Leak Repair
8.3

Cliplight Super Seal Advanced 944KIT - Permanently Seals & Prevents Leaks in A/C & Refrigeration Systems - 1.5-5 TONS
8.2

Leak Saver - Leak Shot HVAC - Leak Sealant Injector and Condensate Line Blaster - Non-Contaminating CO2 Cartridges - for A/C and Mini Splits - Systems Up to 5 Tons
7.7

Rectorseal 45317 AC Freeze PRO Nano Magic Frost Leak Sealer, Green
7.5

Cliplight Super Seal Total 972KIT - Permanently Seals & Prevents Leaks in A/C & Refrigeration Systems - 1.5-5 TONS
7.3

InterDynamics LDS1DC Air Conditioning Tool
6.3

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 (One Pack)


More Info and Images

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 (One Pack)

$36.95  in stock
2 new from $36.95
Free shipping
Amazon.com
as of March 28, 2024 2:11 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.

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


More Info and Images

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

$35.95  in stock
2 new from $35.95
Free shipping
Amazon.com
as of March 28, 2024 2:11 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 Ultimate – 3-in-1 Leak Sealant with Moisture Remover and UV Dye for Air Conditioner, Heat Pumps and More – Works on most HVAC and Automotive Systems – Proudly Made in the USA


More Info and Images

Leak Saver: Direct Inject Ultimate - 3-in-1 Leak Sealant with Moisture Remover and UV Dye for Air Conditioner, Heat Pumps and More - Works on most HVAC and Automotive Systems - Proudly Made in the USA

$124.95  in stock
3 new from $124.95
Free shipping
Amazon.com
as of March 28, 2024 2:11 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")

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


More Info and Images

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

$66.99  in stock
21 new from $66.99
Amazon.com
as of March 28, 2024 2:11 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

Rectorseal 45322 Freeze Leak Repair


More Info and Images

Rectorseal 45322 Freeze Leak Repair

$89.10
$61.60
 in stock
3 new from $60.95
1 used from $45.76
Free shipping
Amazon.com
as of March 28, 2024 2:11 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

Cliplight Super Seal Advanced 944KIT – Permanently Seals & Prevents Leaks in A/C & Refrigeration Systems – 1.5-5 TONS


More Info and Images

Cliplight Super Seal Advanced 944KIT - Permanently Seals & Prevents Leaks in A/C & Refrigeration Systems - 1.5-5 TONS

$59.99  in stock
3 new from $59.99
Amazon.com
as of March 28, 2024 2:11 pm

Features

  • Suitable for use with R-410a
  • Fit type: Universal Fit
  • Flash point: 30.0 degrees_celsius

Leak Saver – Leak Shot HVAC – Leak Sealant Injector and Condensate Line Blaster – Non-Contaminating CO2 Cartridges – for A/C and Mini Splits – Systems Up to 5 Tons


More Info and Images

Leak Saver - Leak Shot HVAC - Leak Sealant Injector and Condensate Line Blaster - Non-Contaminating CO2 Cartridges - for A/C and Mini Splits - Systems Up to 5 Tons

$37.95  in stock
3 new from $37.95
Free shipping
Amazon.com
as of March 28, 2024 2:11 pm

Features

  • REPAIR BOTH CLOGS AND LEAKS: Now you can inject Leak Saver Direct Inject sealants (SEALANT SOLD SEPARATELY) and unclog air conditioner and refrigeration condensate drain lines with the same tool.
  • KIT INCLUDES: Leak Shot Injection Gun, 3x Leak Shot Refrigerant Grade CO2 Cartridges (multiple shots per cartridge), 3/4” Rubber Condensate Line Adapter, 1/2” Rubber Condensate Line Adapter, Flexible 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.
  • 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.
  • 100% SATISFACTION GUARANTEE: We stand behind the quality and effectiveness of our products 100%. If for any reason you are not satisfied, please contact Leak Saver directly and we will make it right.

Rectorseal 45317 AC Freeze PRO Nano Magic Frost Leak Sealer, Green


More Info and Images

Rectorseal 45317 AC Freeze PRO Nano Magic Frost Leak Sealer, Green

$53.68
$50.00
 in stock
5 new from $50.00
Amazon.com
as of March 28, 2024 2:11 pm

Features

  • APPLICATION: AC Leak Freeze PRO refrigerant leak sealant with new leak seeking nano particles creates a stronger dual sealant; nano particles are non-polymer and non-reactive technology that fills cracks and imperfections in hvac coils
  • EASY TO APPLY: Standard 1/4" AC leak freeze adapter; ready to use and safe for HVAC systems; OEM approved and professional install is recommended
  • 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 Pro Nano with magic frost; triple action sealant; 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

Cliplight Super Seal Total 972KIT – Permanently Seals & Prevents Leaks in A/C & Refrigeration Systems – 1.5-5 TONS


More Info and Images

Cliplight Super Seal Total 972KIT - Permanently Seals & Prevents Leaks in A/C & Refrigeration Systems - 1.5-5 TONS

$48.38  in stock
6 new from $48.38
Amazon.com
as of March 28, 2024 2:11 pm

Features

  • Diversitech 972KIT SuperSeal Sealant Total,1.5-5T

InterDynamics LDS1DC Air Conditioning Tool


More Info and Images

InterDynamics LDS1DC Air Conditioning Tool

 out of stock
Amazon.com
as of March 28, 2024 2:11 pm

Features

  • Eliminates odor
  • Package Dimensions: 6.5 L x 2.25 H x 2.25 W (inches)
  • Refrigerant Leak Detector and Sealer.
  • "Direct Charge" 3 oz

The above were some of the best hvac leak sealer 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 Ultimate – 3-in-1 Leak Sealant with Moisture Remover and UV Dye for Air Conditioner, Heat Pumps and More – Works on most HVAC and Automotive Systems – Proudly Made in the USA is also the recommended item in the store.