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title: "red angel a/c stop leak — Niche Verdict: Skip it (40/100) | Amazon United States - Flapen"
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# **red angel a/c stop leak**

**Skip it****40/100 **

a small market ($52K/yr) — red angel a/c stop leak doesn't clear our bar today.

**Market/yr**

**$52K**

**Growth (1y)**

**+108.7%**

**Products**

**10**

**Brands**

**7**

was 4 a year ago

**Sellers**

**24**

**Price range**

**$17.84–$167.16**

**Returns**

**0.8%**

**Rating**

**3.9★**

**Skip it**

Scored 40/100 across market size, growth, competition, quality gap, and returns.

Market sizeGrowthCompetitionQuality gapReturns

Market size

**3**

 ×0.30

Growth

**66**

 ×0.30

Competition

**8**

 ×0.20

Quality gap

**87**

 ×0.10

Returns

**93**

 ×0.10

## **Demand**

Weekly Amazon search volume, last 104 weeks — +108.7% year over year.

2K847Spike '24Spike '25Prime Day '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26

## **Seasonality**

Monthly demand index across the year — 1.00 is average.

JFMAMJJASOND

Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 6.8×

## **Competition**

- BlueDevil Products58% - Leak Saver11% - ERRECOM10% - A/C Pro8% - InterDynamics5% - cmebiz4% - Other (1 brands)3%

The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack. 7 brands and 24 sellers compete here.

**Brands**

**7 **▲rising

was 4 a year ago

**Sellers**

**24**

**Top 5 brand share**

**93%**

#ProductBrandPriceRatingReviewsClick shareTrend

1
![BlueDevil Products Red Angel 49496 A/C Stop Leak - 2 Ounce](https://m.media-amazon.com/images/I/41TrsWDJGCL.jpg) [**BlueDevil Products Red Angel 49496 A/C Stop Leak - 2 Ounce**](https://www.amazon.com/dp/B00NSRVP6A)

BlueDevil Products$25.134.3★83249%▼falling

2
![Leak Saver Direct Inject AC Leak Sealer | AC Stop Leak for Most HVAC Systems Up to 5 Tons | Works with All Systems & AC Refrigerants | Made in the USA](https://m.media-amazon.com/images/I/41avFO2m8tL.jpg) [**Leak Saver Direct Inject AC Leak Sealer | AC Stop Leak for Most HVAC Systems Up to 5 Tons | Works with All Systems & AC Refrigerants | Made in the USA**](https://www.amazon.com/dp/B071VMXMLS)

Leak Saver$35.364.3★2,23711%▲rising

3
![Certified A/C Pro UV Leak Detection Kit](https://m.media-amazon.com/images/I/41Au4UiruOL.jpg) [**Certified A/C Pro UV Leak Detection Kit**](https://www.amazon.com/dp/B003JOB594)

A/C Pro$17.844.3★1,2688%▲rising

4
![ERRECOM Extreme A/C Leak Stop for Vehicle A/C Systems | 3.6 OZ Aerosol Can](https://m.media-amazon.com/images/I/4186X-qdK8L.jpg) [**ERRECOM Extreme A/C Leak Stop for Vehicle A/C Systems | 3.6 OZ Aerosol Can**](https://www.amazon.com/dp/B0G6FLGWH9)

ERRECOM$30.322.6★426%▲rising

5
![Red Angel A/C Stop Leak & Conditioner by BlueDevil Products](https://m.media-amazon.com/images/I/51rMHlIEa3L.jpg) [**Red Angel A/C Stop Leak & Conditioner by BlueDevil Products**](https://www.amazon.com/dp/B01LRHWHVE)

BlueDevil Products$46.164.2★125%—flat

6
![A/C Pro AC Super Seal R-134a Stop Leak Treatment - 3oz](https://m.media-amazon.com/images/I/416VBhdMZvL.jpg) [**A/C Pro AC Super Seal R-134a Stop Leak Treatment - 3oz**](https://www.amazon.com/dp/B07RK5BXTW)

InterDynamics$35.794.0★3575%▲rising

7
![Errecom Extreme Ultra | A/C Leak Stop for Vehicle A/C Systems | Works with All Refrigerants and Lubricants | Includes R1234yf and R134a Adapters | 0.2 fl oz (6 mL) Cartridge](https://m.media-amazon.com/images/I/41Wvj8itkkL.jpg) [**Errecom Extreme Ultra | A/C Leak Stop for Vehicle A/C Systems | Works with All Refrigerants and Lubricants | Includes R1234yf and R134a Adapters | 0.2 fl oz (6 mL) Cartridge**](https://www.amazon.com/dp/B0DBM58DXK)

ERRECOM$28.543.5★1395%▼falling

8
![R134a Replacement with Stop Leak 4 Cans Total for AC Recharging](https://m.media-amazon.com/images/I/41pz+MjRE2L.jpg) [**R134a Replacement with Stop Leak 4 Cans Total for AC Recharging**](https://www.amazon.com/dp/B0DQVHTHPR)

cmebiz$54.454.0★1674%▲rising

9
![TSI Supercool 39241B Total Leak Stop and U/V Dye 1 oz (HFC Free BOV Can with Adapter Retail Box)](https://m.media-amazon.com/images/I/51QjXY3njOL.jpg) [**TSI Supercool 39241B Total Leak Stop and U/V Dye 1 oz (HFC Free BOV Can with Adapter Retail Box)**](https://www.amazon.com/dp/B01981J6F6)

TSI Supercool$29.373.7★843%▲rising

10

![Red Angel 49496 A/C Stop Leak - 2 Ounce (Pack of 6)](https://m.media-amazon.com/images/I/51IjWW7kFjL.jpg) [**Red Angel 49496 A/C Stop Leak - 2 Ounce (Pack of 6)**](https://www.amazon.com/dp/B00NIJUUCS)

BlueDevil Products$167.164.3★8323%▲rising

## **Product shelf**

All 10 tracked products in this niche.

Top sellersNewestTrending

[![BlueDevil Products Red Angel 49496 A/C Stop Leak - 2 Ounce](https://m.media-amazon.com/images/I/41TrsWDJGCL.jpg)**BlueDevil Products Red Angel 49496 A/C Stop Leak - 2 Ounce** BlueDevil Products**$25.13**4.3★832 reviews](https://www.amazon.com/dp/B00NSRVP6A) [![Leak Saver Direct Inject AC Leak Sealer | AC Stop Leak for Most HVAC Systems Up to 5 Tons | Works with All Systems & AC Refrigerants | Made in the USA](https://m.media-amazon.com/images/I/41avFO2m8tL.jpg)**Leak Saver Direct Inject AC Leak Sealer | AC Stop Leak for Most HVAC Systems Up to 5 Tons | Works with All Systems & AC Refrigerants | Made in the USA** Leak Saver**$35.36**4.3★2,237 reviews](https://www.amazon.com/dp/B071VMXMLS) [![Certified A/C Pro UV Leak Detection Kit](https://m.media-amazon.com/images/I/41Au4UiruOL.jpg)**Certified A/C Pro UV Leak Detection Kit** A/C Pro**$17.84**4.3★1,268 reviews](https://www.amazon.com/dp/B003JOB594) [![ERRECOM Extreme A/C Leak Stop for Vehicle A/C Systems | 3.6 OZ Aerosol Can](https://m.media-amazon.com/images/I/4186X-qdK8L.jpg)**ERRECOM Extreme A/C Leak Stop for Vehicle A/C Systems | 3.6 OZ Aerosol Can** ERRECOM**$30.32**2.6★42 reviews](https://www.amazon.com/dp/B0G6FLGWH9) [![Red Angel A/C Stop Leak & Conditioner by BlueDevil Products](https://m.media-amazon.com/images/I/51rMHlIEa3L.jpg)**Red Angel A/C Stop Leak & Conditioner by BlueDevil Products** BlueDevil Products**$46.16**4.2★12 reviews](https://www.amazon.com/dp/B01LRHWHVE) [![A/C Pro AC Super Seal R-134a Stop Leak Treatment - 3oz](https://m.media-amazon.com/images/I/416VBhdMZvL.jpg)**A/C Pro AC Super Seal R-134a Stop Leak Treatment - 3oz** InterDynamics**$35.79**4.0★357 reviews](https://www.amazon.com/dp/B07RK5BXTW) [![Errecom Extreme Ultra | A/C Leak Stop for Vehicle A/C Systems | Works with All Refrigerants and Lubricants | Includes R1234yf and R134a Adapters | 0.2 fl oz (6 mL) Cartridge](https://m.media-amazon.com/images/I/41Wvj8itkkL.jpg)**Errecom Extreme Ultra | A/C Leak Stop for Vehicle A/C Systems | Works with All Refrigerants and Lubricants | Includes R1234yf and R134a Adapters | 0.2 fl oz (6 mL) Cartridge** ERRECOM**$28.54**3.5★139 reviews](https://www.amazon.com/dp/B0DBM58DXK) [![R134a Replacement with Stop Leak 4 Cans Total for AC Recharging](https://m.media-amazon.com/images/I/41pz+MjRE2L.jpg)**R134a Replacement with Stop Leak 4 Cans Total for AC Recharging** cmebiz**$54.45**4.0★167 reviews](https://www.amazon.com/dp/B0DQVHTHPR)

## **Reviews**

What buyers praise and complain about, mined from review topics.

### **What buyers love **

**Leak-Proof**25%

*“Stop Leak”*

**Ease Of Use**11%

*“Easy to Use”*

**Quality-Overall**10%

*“Extremely pleased with results so far”*

**Value For Money**7%

*“A worthy Investment”*

**Advertised Vs Actual Product**7%

*“As advertised”*

**Functionality-Overall**4%

*“AFTER MANY ATTEMPTS WITH OTHER PRODUCTS TO STOP MY ANNOYING PICKUP TRUCK AIR CONDINING LEAK,,THIS SID THE JOB,,,FULL STOP”*

**Maintenance And Repair**4%

*“it can potentially save a significant amount of money compared to more extensive repairs”*

**Instructions/User Manual/Troubleshooting**4%

*“Instructions were easy to follow”*

**Efficiency**4%

*“This air conditioning additive is a very convenient solution for anyone looking to maintain their vehicle cooling system without a trip to a professional shop”*

**Compression**2%

*“I think it fixed the compressor leak in my 30 year old landcruiser”*

### **What buyers complain about **

**Leak-Proof**27%

*“Leaks”*

**Functionality-Overall**15%

*“Nothing will flow in or out”*

**Value For Money**7%

*“value is terrible”*

**Instructions/User Manual/Troubleshooting**5%

*“Follow the instructions EXACTLY, TO THE LETTER, and DO NOT DEVIATE from the steps or the order they are in”*

**Advertised Vs Actual Product**5%

*“This feels misleading”*

**Quality-Overall**4%

*“Garbage”*

**Heating**4%

*“the AC is far colder than it was before”*

**Design-Overall**3%

*“A designed scam”*

**Durability**3%

*“broke almost immediately”*

**Defective Material/Parts**2%

*“Product did not work at all”*

#### **Top return reasons**- Leak-Proof21% - Advertised Vs Actual Product21% - Compatibility-Overall9% - Functionality-Overall8% - Product Condition7% - Defective Material/Parts6% - Value For Money5% - Instructions/User Manual/Troubleshooting4% - Assembly/Installation4% - Size-Overall4%