RED TEK ProSeal12 A/C Seal Treatment (4 oz. can)

I bought this due to a small leak in my 1992 Accord's AC (I could hear the leak itself). I had previously recharged by AC and a few days later my AC went from cold to cool and a week later it was lukewarm. I recharged my AC once again and used ProSeal - this time around, 2.5 weeks later it is still ICE COLD and the leak is not audible at all, which proves the product works. This has saved me hundreds of dollars to convert or fix the leak! UPDATE after 4 months: AC is still ice cold - can't believe it. I survived the Summer and saved a ton of money.

Worked great on 30 year old car, seal the leak completely

We used it on a R-12 system with a new compressor and dryer. It work fine and blows cold and has no leaks. It take less gas than R134 or r12 so it works out to be cheap. Don't believe the literature. Pump down the system before you add it. Their instructions are awful and conflicting don't plan on any tech help from them and the internet is not much help either

I love this. It saved me quite a lot of money. I took my car to the shop and they told me I needed a whole new compressor. The E backed everything out of my air conditioner so someone recommended this from the job and I’ve had AC ever since.

Fast shipping at a great price.

Avoid! This does not seal any leaks and will clog your system. I have been using the brands available at Walmart and they work much better and actually seal the small leaks for a good while. Buyer beware, if this happens to you with their product, they will not refund you.

Excellent item, works exactly as described.

Despite general advice not to use this sort of product it kept my old Saab running like a champ after it developed a slow failure. Held charge,compressor compressed and cold air came out the vents, Job done for multiple years. Your results may be different, your risk, your choice.