10 Best Ac Leak Sealers 2020

Gareth Otwell Reviewed by Gareth Otwell | Last Updated:

After analyzing products, scanning reviews, spending more than 36 hours of research and speaking with our test users, we think the Leak Saver: Direct Inject UV is the one of the Best Ac Leak Sealer on the market.

# Image Name Brand Price
1
⭐Best Choice
Leak Saver: Direct Inject UV
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 Check price Leak Savers $$$$$ Check price
2 Nu-Calgon 4050-06 A/C Easy Seal Nu-Calgon 4050-06 A/C Easy Seal Check price Nu Calgon $$$$$ Check price
3
Best under $50
Leak Saver: Direct Inject
Leak Saver: Direct Inject - Refrigerant Leak Sealer - For Systems Up to 5 Tons - Compatible With Most Air Conditioner and Refrigeration Systems - Proudly Made in the USA Check price N/A $$$$$ Check price
4 Cliplight Super Seal Total 972KIT Cliplight Super Seal Total 972KIT - Permanently Seals & Prevents Leaks in A/C & Refrigeration Systems - 1.5-5 TONS Check price Cliplight $$$$$ Check price
5
💲Best value for the money
Interdynamics C PRO MRL-3 R-134a Super Seal Air Conditioning Stop
Interdynamics C PRO MRL-3 R-134a Super Seal Air Conditioning Stop Leak Kit-3 oz Check price Interdynamics $$$$$ Check price
6 Rectorseal 45302 AC Leak Freeze R Rectorseal 45302 AC Leak Freeze R, 0.5 Oz, Red Check price Rectorseal $$$$$ Check price
7
👑Premium Pick
Rectorseal 45322 AC Leak Freeze with Magic Frost
Rectorseal 45322 AC Leak Freeze with Magic Frost Check price Rectorseal $$$$$ Check price
8 FJC 9140 Stop Leak FJC 9140 Stop Leak - 3 Ounce Check price FJC $$$$$ Check price
9 A/C Pro ACP200-6 Ultra Synthetic A/C Recharge R-134a Kit (20 A/C Pro ACP200-6 Ultra Synthetic A/C Recharge R-134a Kit (20 ounces) Check price Interdynamics $$$$$ Check price
10 Leak Saver: Direct Inject Dry A/C Moisture Remover Leak Saver: Direct Inject Dry A/C Moisture Remover - Works on Systems Up to 5 Tons - Converts Moisture into Synthetic Oil - Created and Used by HVAC Pros - Made in the USA Check price Leak Savers $$$$$ Check price

Leak Saver: Direct Inject UV – Best Overall Ac Leak Sealer

Leak Saver: Direct Inject UV
  • TWO MILLION FAST-ACTING REPAIRS: Don't take our word for it, try the refrigerant leak sealer that has worked for 2,000,000 plus applications on systems up to 5 tons.
  • THE ONLY FUSS-FREE REPAIR LIKE IT: Patent-pending, this direct injection method requires no pump downs, syringes, or pressure-sensitive cans to make it work.
  • PROACTIVELY CATCH ANY BIG LEAKS: Help minimize surprise repairs with UV dye to identify if major leaks are present in any of your air conditioner or refrigeration systems.
  • HVAC PROFESSIONALS APPROVED: Used and made by pros, confidently use in Split Systems, Heat Pumps, Commercial Unit Coolers, Refrigeration Systems, and more.
  • 100% SATISFACTION GUARANTEE: This UV dye wonder will fix your next leak or you get your next one at no cost, just contact us (must be installed by certified HVAC techs).

Nu-Calgon 4050-06 A/C Easy Seal

Nu-Calgon 4050-06 A/C Easy Seal
  • The A/C Easyseal Circulates Through The System With The Refrigerant Seeking Out Leaks Rather Than Migrating Slowly With The Oil
  • A/C Easyseal Will React With Moisture Or Air That Is Naturally Present At A Leak
  • For Systems 1.5 Tons To Fractional
  • Brand Name: Nu-Calgon

Leak Saver: Direct Inject – Best under $50

Leak Saver: Direct Inject
  • TAKE A LOOK AT THE NUMBERS: Two million applications and counting, you can confidently seal small refrigerant leaks with a proven leak sealer (systems up to 5 tons).
  • THE EASIEST INJECTION METHOD: Patent-pending and made to be completely fuss-free, no pump downs, syringes, or pressure-sensitive cans needed again!
  • A PERMANENT FIX FOR LEAKS: Super concentrated and made to work with all types of refrigerants, it's compatible with all types of refrigerants and oils (except ammonia).
  • MADE BY HVAC PROFESSIONALS: And used by them, it's perfect for use in Split Systems, Heat Pumps, Commercial Unit Coolers, Refrigeration Systems, and more.
  • 100% SATISFACTION GUARANTEE: 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).

Cliplight Super Seal Total 972KIT

Cliplight Super Seal Total 972KIT
  • MADE IN USA - America's Most Trusted AC/R Stop Leak.
  • SUPER SEAL + DRY R & FLASH - 3-in-1: Dries, Seals, + Dye.
  • 1.5-5 TONS - permanently seals & prevents leaks in all A/C & refrigeration systems
  • Includes DRY R to increase system efficiency & FLASH UV Dye to find leaks.
  • Professional HVACR use - compatible with all oils & refrigerants, hose included.

Interdynamics C PRO MRL-3 R-134a Super Seal Air Conditioning Stop – Best Budget Ac Leak Sealer

Interdynamics C PRO MRL-3 R-134a Super Seal Air Conditioning Stop
  • Seals metal leaks in condensers, evaporators, accumulators, receiver and driers
  • Seals rubber leaks in hoses, O-rings, gaskets
  • Safe for all R-134A systems and recovery equipment
  • Compatible with all lubricants
  • Comes with recharge hose

Rectorseal 45302 AC Leak Freeze R

Rectorseal 45302 AC Leak Freeze R
  • 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

Rectorseal 45322 AC Leak Freeze with Magic Frost – Premium Pick

Rectorseal 45322 AC Leak Freeze with Magic Frost
  • 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 & oem approved
  • 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

FJC 9140 Stop Leak

FJC 9140 Stop Leak
  • Seals leaks in O-rings and gaskets
  • Sealers with O-ring conditioners
  • No UV light necessary to view the dye
  • Will not harm a/c system, refrigerant recovery or charging equipment

A/C Pro ACP200-6 Ultra Synthetic A/C Recharge R-134a Kit (20

A/C Pro ACP200-6 Ultra Synthetic A/C Recharge R-134a Kit (20
  • Replaces lost R-134a refrigerant and oil in automotive A/C system
  • Comes with reusable extra-long braided charging hose and large gauge with trigger dispenser for easy, convenient, and accurate recharging
  • Formula with 2X cooling boosters vs. the next leading brand of A/C recharge kits: independently tested to deliver the coldest air from your vehicle's A/C
  • Contains leak sealer to seal common A/C leaks in rubber hoses, gaskets, and O-rings
  • Protects and extends A/C system life

Leak Saver: Direct Inject Dry A/C Moisture Remover

Leak Saver: Direct Inject Dry A/C Moisture Remover
  • GET YOUR A/C BACK UP AND RUNNING: Help prevent system failure, preserve efficiency and eliminate corrosion by converting system moisture into synthetic oil.
  • FOR MOST AIR-CONDITIONING SYSTEMS: Use on mini-split units, heat pumps, packaged units, central A/Cs, coolers, microchannel coils, and automotive applications.
  • THE FASTER, MORE ECONOMICAL CHOICE: By converting moisture into synthetic oil, it mixes with the already existing oil, for a simpler process than vacuum pumping.
  • THE PERFECT PREP FOR LEAK REPAIRS: Use alone to dry your air-conditioning system or pair with our Leak Saver Direct Inject (our refrigerant leak sealer) for leaks.
  • 100% SATISFACTION GUARANTEE: If for any reason this didn't work out and you're unsatisfied, contact us for another at no cost (must be installed by certified HVAC techs).

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