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ComStar Leak Bubbles Yellow HVAC & Gas Detector, Fastest-Acting Leak Detector in Today's Market - Safe, Non-Corrosive, Long-Lasting Bubbles, Detects Micro Leaks, Made in USA, 1 Quart Spray (90-204)

Free shipping on orders over $29.99

$22.42

$ 9 .99 $9.99

In Stock

1.:8 Ounce


2.Color:Yellow


About this item

  • Leak Bubbles Yellow is fastest acting leak detector in today's market
  • Environmentally safe, non-toxic, and non-corrosive
  • Detects leaks in natural gas, refrigeration gas, nitrogen, air and C02
  • Leak Bubbles Yellow will not freeze
  • Creates long-lasting bubbles and detects micro leaks


ComStar’s Leak Bubbles Yellow is an HVAC and Gas Leak Detector that has set the standard for high-quality and fast-acting leak detectors in the market today! Leak Bubbles Yellow produces large, consistent bubbles. It leaves a long-lasting coating wherever a leak is detected and its fluorescent yellow color makes the leak easy to see under a fluorescent light. This product detects leaks in natural gas, refrigeration gas, nitrogen, air, and C02. Simply apply with the cap dauber and watch fast, even bubbles appear. Leak Bubbles Yellow is perfect for all types and sizes of leaks, even the smallest micro leaks. Leak Bubbles Yellow will not freeze and is perfectly formulated for both high and low-temperature applications and all types and sizes of leaks. Leak Bubbles Yellow is environmentally safe, non-toxic, and non-corrosive.


Kevin West
2025-08-07 12:14:51
I don't normally write reviews, but this was exceptional and warranted me taking the time to write one.I'm an independent owner operator of a 2020 Peterbilt 579, which is riddled with the ridiculous, cheap plastic push to connect fittings for the air brake system. I despise air leaks, and having to wait for my truck to build air pressure when I first crank it. My rule of thumb is if it can't hold at least 100lbs of air pressure for 3 days then the system needs attention.This is a tight standard by most. For years I have depended on soapy water solution and have even tried adding corn syrup. Now that I have found this, I will never use soapy water for anything other than finding tire air leaks. This stuff is hands down the most efficient solution I've come across. Within 15 minutes of opening the bottle I had located 5 air leaks on my truck that soapy water didn't reveal. It might be pricey compared to the alternative, but way more effective. I hope this saves another trucker like me some headaches. Way more important things to worry over than an air leak.
Timber
2025-08-04 16:49:40
My shop air compressor, (with many connections and unions), had a slow leak. Sprayed this product on and found the leak on an unlikely connection. The leaking connection began to foam up, not big bubbles because it was such a slow leak. Able to wipe the solution away without leaving a mess. I'm left with a lifetime supply of leak detector.
Rich
2025-07-28 20:43:37
I spent a lot of time trying all kinds of soaps at different concentrations trying to find a leak in a motorcycle tire. That has always worked for me before. Nothing worked this time. I broke down and ordered this stuff and within a few minutes found the leak (I had to toss the tire). This stuff is a keeper for me.
Gary Boston
2025-07-10 11:48:11
Leak detector seems to work well. When it is very hot outside, you have to keep adding more because it evaporates. Still I am happy with the product.
Paul Jantzen
2025-03-14 18:12:39
good leak detecting agent.
Expressed Reviews
2025-02-23 17:53:32
Sure, soapy water will detect leaks, but let me tell you, this product will find leaks that soapy water will miss.I had the opportunity to use this on my tire valves, and I discovered a minuscule air leak that didn't show up at all using soapy water. This product is fantastic; it detects virtually any kind of leak, and does so extremely well.Had I used soapy water instead of this product, I would never have known that one of my tires was slowly leaking air. The leak was so small that it required that I use a magnifying glass to see the escaping bubbles. With that said, although the leak was about as tiny as you could possibly get, it would have resulted in one of my tires losing a substantial amount of air over time.This stuff isn't cheap, but it is most certainly effective. Simply spray the area in question, and look for bubbles to form. You can either use the spray or stream mode. When I used the spray mode, I didn't see the tiny bubbles escaping from my tire. When I used the stream mode and a magnifying glass, the leaky bubbles became apparent.I consider this money well spent. It's a step up from using soapy dish water, and the convenient spray bottle will last a very long time.
Drew
2025-01-11 14:49:52
This stuff works fine, wanted to try another brand from that I usually use (Hercules Megabubble), which I get at my local Menards, but it wasn't as good. It is nice to have a large quantity though, as you can soak down unions/etc to be more confident in no leaks. The major down side is that its very liquid, and it just flows right off the parts.
Greg
2024-12-12 15:34:35
THIS SOLUTION DOESN'T MAKE BUBBLES AHEAD OF CHECKING YOUR GAS FITTINGS. WATER&SOAP SOLUTION YOU MIX UP MAKES BUBBLES BEFORE YOU SPRAY. (BAD)
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