Yes. I had Red Angel AC Stop Leak added to my 1993 Toyota 4x4 back in June 2014 and is still operating ice cold . My dealer diagnosed the leak to be behind the dash with either the O-rings in the connections or the evaporator. The cost for repair was estimated at over $1200. I definitely recommend Red Angel A/C Stop Leak (49496) if your AC meets the leak requirements listed: If your vehicle can hold 5 inches of vacuum for 25 minutes or 15 inches of vacuum for 5 minutes. This product is not recommended for systems that lose more than 1 pound of Freon per day or leaking compressors.

Is it possible this is compatible with enviro safe refrigerants? (A 134a replacement/ runs much colder)

Late to answer but yes this will work with r134a drop in replacements. I’ve used it with two different hydrocarbon based r134a replacements, like envirosafe and frosty cool.

Can it be on refrigerators?

YES, BUT ONLY A SMALL AMOUNT AS THE REFRIGERANT CAPACITY IS SMALL. DON'T EXPECT MIRACLES

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Red Angel 49496 A/C Stop Leak - 2 Ounce

Product ID: 11101846

🔧Seals leaks chemically, permanent fix

❄️Compatible with R-12 & R-134a A/C systems

🛡️No clogging, system-safe formula

AR$140697

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Description

❄️ Stop leaks, start cooling — permanently and effortlessly!

CHEMICAL WELD SEAL - Activates only at leak points for a permanent, reliable fix
PREVENTATIVE POWER - Use proactively to avoid costly future leaks and repairs
SYSTEM SAFE FORMULA - No solids or particles to clog or damage your A/C system
CONTINUOUS CONDITIONING - Lubricates and protects A/C components post-repair
UNIVERSAL COMPATIBILITY - Works seamlessly with both R-12 and R-134a refrigerants

Red Angel 49496 A/C Stop Leak is a professional-grade, 2-ounce additive that chemically seals leaks in automotive air conditioning systems without clogging or damaging components. Compatible with R-12 and R-134a refrigerants, it activates only at leak points, providing a permanent seal while continuously lubricating system parts for enhanced longevity and performance.

Specifications

ASIN	B00NSRVP6A
Best Sellers Rank	#23,062 in Automotive ( See Top 100 in Automotive ) #93 in Air Conditioning Line Repair Tools
Brand	BlueDevil Products
Customer Reviews	4.3 4.3 out of 5 stars (830)
Date First Available	September 24, 2014
Is Discontinued By Manufacturer	No
Item Weight	1.76 ounces
Item model number	49496
Manufacturer	BlueDevil Products
Manufacturer Part Number	49496
Model	49496
Product Dimensions	0.9 x 2 x 3.9 inches

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AR$140697

Duties & taxes included

In stock

Sold byAmazon ArgentinaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Argentina.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

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Received my product in pristine condition. Great service overall.

1 month ago

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