Direct Inject ULTIMATE 3 in 1

It didnt fix my leak; however I must admit the leak I had was large. I think if it was a small leak like when it first started I would have had more success also I have a really good UV light and I did see some of the UV in the pan but it wasn't as bright a UV as I would think I really had to look even with a UV light

Product seems to work as advertised. There is also excellent customer service. I had an issue with a previous shipment, and it was resolved quickly. Highly recommend as a leak sealer and as a maintenance product.

Instructions could use a little help on making sure thelow side is connected first then the C02 shot. With a warning of the tube can explode if not properly connected. You should also include after 60 minutes to test the unit the next day.I had major core leak where the entire thing would ice over blocking all air flow. After using the leak stop, and waiting a day the leaks were plugs. I can not get the 1500 sqft 3 ton system down to 66 degrees inside in Dallas, TX. Saved me from an entire system repair estimates from $16000. to $6900. USD Not a bad trade for 200 bucks. It was two hundred with the purchase of two air guns and 4 leak stop tubes.