RectorSeal Better Bubble 65554 Advanced Leak Detector, Detects Refrigerant Gas, Air, and Oxygen, Fast Acting, Can Be Used at Varied Temperature/Pressure Conditions, Plumbing, 8 oz.

I found a very slow leak at a Schrader valve using this. The bubbles are durable and thick so unlike soapy water they don't dry out and pop before they have a chance to work on a small leak. In this case I put a small hole in a valve cap, twisted the cap on the suspect valves and applied the bubble solution to the hole. It took about 30 seconds to see bubbles appear where my normal bottle of soapy water showed nothing. Amazing stuff!

Smelled gas from the stove and had a technician come assess; he used something similar to this product and I didn’t fully trust his assessment as I swear I thought I saw some bubbling! So after he left, I Bought this item to do my own testing! It arrived quickly and gave me the reassurance I needed that my stove did not have a gas leak! Quick tip for using: The item comes with an applicator; I noticed that the liquid has some bubbles just from shipping so I let it sit for a bit before I applied it, as when I first applied it the natural bubbles from shipping made me believe there was a leak- just a heads up! (FYI the way I pushed some of the small bubbles out quicker was by gently banging the bottom of the item on the counter a few times!) enjoy!

Good leak detection liquid for testing of mini-slit lines. Used it to test several lines. Functioned as expected.

A good product for finding leaks in a mini split line set, would recommend for anyone doing their own mini split installation.

Excellent. Made it easy to find a very minor leak in a line set of a 3-head mini-split system. Well worth the money. No issues with product leakage during shipping (as reported by some others).

Worked as described

Exactly what I needed. Very Satisfied.

Seems like a good product for what it used for.unfortunately I bought it thinking it would detect leaks and air mattresses, so probably not too good for that

Excelente! pequeñas fugas pueden ser detectadas, la burbuja es resistente. Lo recomiendo 100%!

works well

I purchased these bubbles based on videos that I saw on YouTube that recommended them for testing leaks on a mini split lineset. Got my AC recharged last summer and it was out of refrigerant within 8 months. I pressurized the system with Nitrogen, then testing all four connections. I used the enclosed cotton dabber to apply the bubbles to the connections. Within a few seconds, i found the leak. The bubbles stay on the fitting for at least 30 mins. I also used the bubbles on a tire valve stem and found a slow leak that was causing my tire to go flat.

Very useful for detecting gas leaks, much better than the old soap and water method. Very good for detecting slow leaks. It is nice that it includes the applicator to brush it on gas connections.

Value for your money