--- title: "r134a with uv dye — Niche Verdict: Worth a look (55/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/automotive/r134a-with-uv-dye" last_updated: "2026-07-10T04:22:58.459Z" locale: en meta: description: "r134a with uv dye shows low returns (1.4%), but a small market ($24K/yr) keeps it on the watch list." "og:description": "r134a with uv dye shows low returns (1.4%), but a small market ($24K/yr) keeps it on the watch list." "og:title": "r134a with uv dye — Niche Verdict: Worth a look (55/100) | Amazon United States - Flapen" --- Back to Flapen home # **r134a with uv dye** **Worth a look****55/100 ** r134a with uv dye shows low returns (1.4%), but a small market ($24K/yr) keeps it on the watch list. **Market/yr** **$24K** **Growth (1y)** **+242.8%** **Products** **35** **Brands** **14** was 12 a year ago **Sellers** **63** **Price range** **$7.59–$104.52** **Returns** **1.4%** **Rating** **4.2★** **Worth a look** Scored 55/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **1** ×0.30 Growth **81** ×0.30 Competition **71** ×0.20 Quality gap **74** ×0.10 Returns **89** ×0.10 ## **Demand** Weekly Amazon search volume, last 104 weeks — +242.8% year over year. 3K1KSpike '25Holiday '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 13.6× ## **Competition** - ZeroR30% - TSI Supercool16% - ENVIRO-SAFE11% - ERRECOM10% - InterDynamics10% - A/C Pro9% - Other (8 brands)15% The top 5 products take 41% of clicks — established leaders, but buyers still shop beyond them. 14 brands and 63 sellers compete here. **Brands** **14 **▲rising was 12 a year ago **Sellers** **63** **Top 5 brand share** **76%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![ZeroR AC UV Dye Leak Detector R134_ R12_ R22_ - 3 Can](https://m.media-amazon.com/images/I/41-S1JmPPsL.jpg) [**ZeroR AC UV Dye Leak Detector R134_ R12_ R22_ - 3 Can**](https://www.amazon.com/dp/B08BPMJS6M) ZeroR$34.814.2★23510%▼falling 2 ![EZ Chill Car R-134a with Leak Sealer and UV Dye for Cars & Trucks & More Red Dye 10.25 Oz RLS-3](https://m.media-amazon.com/images/I/41LXcxER08L.jpg) [**EZ Chill Car R-134a with Leak Sealer and UV Dye for Cars & Trucks & More Red Dye 10.25 Oz RLS-3**](https://www.amazon.com/dp/B001O087OG) InterDynamics$21.733.2★19210%—flat 3 ![TSI Supercool P46-8D PAG Oil 46 Viscosity with UV Dye 8oz 1-Pack](https://m.media-amazon.com/images/I/41CAB+M1iyL.jpg) [**TSI Supercool P46-8D PAG Oil 46 Viscosity with UV Dye 8oz 1-Pack**](https://www.amazon.com/dp/B008PKWD3O) TSI Supercool$9.334.8★1,9748%▲rising 4 ![ERRECOM Brilliant - 0.2 fl oz (7.5 ml) Fluorescent UV Dye for Detecting Refrigerant Gas Leaks in Vehicle A/C Systems Includes R134a Adapter](https://m.media-amazon.com/images/I/41rsGWzoquL.jpg) [**ERRECOM Brilliant - 0.2 fl oz (7.5 ml) Fluorescent UV Dye for Detecting Refrigerant Gas Leaks in Vehicle A/C Systems Includes R134a Adapter**](https://www.amazon.com/dp/B0C5RWQ48C) ERRECOM$9.904.3★9997%▼falling 5 ![ENVIRO-SAFE UV Dye Charge Leak Detector for R1234YF R134a R12 R22 R600a R290 & More | Fluorescent AC Leak Detection Dye - Single Can (Can Only)](https://m.media-amazon.com/images/I/41169qTbqCL.jpg) [**ENVIRO-SAFE UV Dye Charge Leak Detector for R1234YF R134a R12 R22 R600a R290 & More | Fluorescent AC Leak Detection Dye - Single Can (Can Only)**](https://www.amazon.com/dp/B0FT98GFND) ENVIRO-SAFE$29.594.0★106%▲rising 6 ![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★846%▲rising 7 ![ZeroR AC Refrigerant R134a Replacement - Eco-Friendly 100% Natural Hydrocarbon Gas - Compatible and Easy to Install with R134a A/C Recharge Systems - 3 Cans (6oz Each)](https://m.media-amazon.com/images/I/51EGYhEjwTL.jpg) [**ZeroR AC Refrigerant R134a Replacement - Eco-Friendly 100% Natural Hydrocarbon Gas - Compatible and Easy to Install with R134a A/C Recharge Systems - 3 Cans (6oz Each)**](https://www.amazon.com/dp/B0DRTPMGY6) ZeroR$37.554.1★5345%▲rising 8 ![A/C Pro Certified A/C Pro Car Air Conditioner Leak Detector Dye Detection UV Dye Detects Leaks in R-12 and R-134A Condition Systems 1 Oz](https://m.media-amazon.com/images/I/31AWFc5Uc8L.jpg) [**A/C Pro Certified A/C Pro Car Air Conditioner Leak Detector Dye Detection UV Dye Detects Leaks in R-12 and R-134A Condition Systems 1 Oz**](https://www.amazon.com/dp/B008QDXPFK) A/C Pro$7.854.6★1,6545%▼falling 9 ![ZeroR AC Refrigerant R134a Replacement - Eco-Friendly 100% Natural Hydrocarbon Gas - Compatible and Easy to Install with R134a A/C Recharge Systems - 6 Cans (6oz Each)](https://m.media-amazon.com/images/I/51x8Gro-ObL.jpg) [**ZeroR AC Refrigerant R134a Replacement - Eco-Friendly 100% Natural Hydrocarbon Gas - Compatible and Easy to Install with R134a A/C Recharge Systems - 6 Cans (6oz Each)**](https://www.amazon.com/dp/B0B1F2SRQX) ZeroR$63.634.2★8564%▲rising 10 ![Leak Saver UV Dye (Dye Only No Sealant) UV Refrigerant Leak Detection Dye for Automotive Home Commercial - Marine AC and Refrigeration up to 5 Tons](https://m.media-amazon.com/images/I/41aKkhUTlYL.jpg) [**Leak Saver UV Dye (Dye Only No Sealant) UV Refrigerant Leak Detection Dye for Automotive Home Commercial - Marine AC and Refrigeration up to 5 Tons**](https://www.amazon.com/dp/B07THLZZXJ) Leak Saver$19.444.6★1974%▲rising 11 ![ZeroR AC Recharge Kit R134a Replacement Eco-Friendly Refrigerant Gas with 14-Inch Charging Hose Tool for SSV Cans 4-Cans](https://m.media-amazon.com/images/I/51wOgZDF2pL.jpg) [**ZeroR AC Recharge Kit R134a Replacement Eco-Friendly Refrigerant Gas with 14-Inch Charging Hose Tool for SSV Cans 4-Cans**](https://www.amazon.com/dp/B0FHG4K7YF) ZeroR$58.073.9★1894%▲rising 12 ![COSOOS Air Conditioner Leak Detector Tool AC Leak Detector Kit UV Light for AC UV Dye Leak Detection Oil Dye Leak Detector with Protective Glasses](https://m.media-amazon.com/images/I/414+jlIAc+L.jpg) [**COSOOS Air Conditioner Leak Detector Tool AC Leak Detector Kit UV Light for AC UV Dye Leak Detection Oil Dye Leak Detector with Protective Glasses**](https://www.amazon.com/dp/B0D1Y9W96P) COSOOS$14.844.5★2623%—flat 13 ![ERRECOM Brilliant - 12 x 0.2 fl oz (7.5 ml Each) Fluorescent UV Dye for Detecting Refrigerant Gas Leaks in Vehicle A/C Systems Includes R134a Adapter (12 x 0.2 fl oz)](https://m.media-amazon.com/images/I/518+sojLLsL.jpg) [**ERRECOM Brilliant - 12 x 0.2 fl oz (7.5 ml Each) Fluorescent UV Dye for Detecting Refrigerant Gas Leaks in Vehicle A/C Systems Includes R134a Adapter (12 x 0.2 fl oz)**](https://www.amazon.com/dp/B0BZ582887) ERRECOM$36.854.3★9993%—flat 14 ![ENVIRO-SAFE UV Dye Charge Leak Detector for R1234YF R134a R12 R22 R600a R290 & More | Fluorescent AC Leak Detection Dye 3 Cans (Include R1234YF Hose)](https://m.media-amazon.com/images/I/41IwZ62v87L.jpg) [**ENVIRO-SAFE UV Dye Charge Leak Detector for R1234YF R134a R12 R22 R600a R290 & More | Fluorescent AC Leak Detection Dye 3 Cans (Include R1234YF Hose)**](https://www.amazon.com/dp/B0FT9YWCFM) ENVIRO-SAFE$49.995.0★12%▲rising 15 ![X AUTOHAUX Oil and Dye Injectors Kit 30ml/1 Oz Hand Push Compressor Manual AC Oil Dye Injector with Quick Coupler 1/4 SAE Connector Car HVAC Compressor Oil Dye Injector Refrigerant Tool](https://m.media-amazon.com/images/I/31bquQ7h18L.jpg) [**X AUTOHAUX Oil and Dye Injectors Kit 30ml/1 Oz Hand Push Compressor Manual AC Oil Dye Injector with Quick Coupler 1/4 SAE Connector Car HVAC Compressor Oil Dye Injector Refrigerant Tool**](https://www.amazon.com/dp/B0BPQSNKFY) X AUTOHAUX$12.254.1★3712%—flat **~~Showing 15 of 35 — show all ~~** ## **Product shelf** All 35 tracked products in this niche. Top sellersNewestTrending [![ZeroR AC UV Dye Leak Detector R134_ R12_ R22_ - 3 Can](https://m.media-amazon.com/images/I/41-S1JmPPsL.jpg)**ZeroR AC UV Dye Leak Detector R134_ R12_ R22_ - 3 Can** ZeroR**$34.81**4.2★235 reviews](https://www.amazon.com/dp/B08BPMJS6M) [![EZ Chill Car R-134a with Leak Sealer and UV Dye for Cars & Trucks & More Red Dye 10.25 Oz RLS-3](https://m.media-amazon.com/images/I/41LXcxER08L.jpg)**EZ Chill Car R-134a with Leak Sealer and UV Dye for Cars & Trucks & More Red Dye 10.25 Oz RLS-3** InterDynamics**$21.73**3.2★192 reviews](https://www.amazon.com/dp/B001O087OG) [![TSI Supercool P46-8D PAG Oil 46 Viscosity with UV Dye 8oz 1-Pack](https://m.media-amazon.com/images/I/41CAB+M1iyL.jpg)**TSI Supercool P46-8D PAG Oil 46 Viscosity with UV Dye 8oz 1-Pack** TSI Supercool**$9.33**4.8★1,974 reviews](https://www.amazon.com/dp/B008PKWD3O) [![ERRECOM Brilliant - 0.2 fl oz (7.5 ml) Fluorescent UV Dye for Detecting Refrigerant Gas Leaks in Vehicle A/C Systems Includes R134a Adapter](https://m.media-amazon.com/images/I/41rsGWzoquL.jpg)**ERRECOM Brilliant - 0.2 fl oz (7.5 ml) Fluorescent UV Dye for Detecting Refrigerant Gas Leaks in Vehicle A/C Systems Includes R134a Adapter** ERRECOM**$9.90**4.3★999 reviews](https://www.amazon.com/dp/B0C5RWQ48C) [![ENVIRO-SAFE UV Dye Charge Leak Detector for R1234YF R134a R12 R22 R600a R290 & More | Fluorescent AC Leak Detection Dye - Single Can (Can Only)](https://m.media-amazon.com/images/I/41169qTbqCL.jpg)**ENVIRO-SAFE UV Dye Charge Leak Detector for R1234YF R134a R12 R22 R600a R290 & More | Fluorescent AC Leak Detection Dye - Single Can (Can Only)** ENVIRO-SAFE**$29.59**4.0★10 reviews](https://www.amazon.com/dp/B0FT98GFND) [![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)** TSI Supercool**$29.37**3.7★84 reviews](https://www.amazon.com/dp/B01981J6F6) [![ZeroR AC Refrigerant R134a Replacement - Eco-Friendly 100% Natural Hydrocarbon Gas - Compatible and Easy to Install with R134a A/C Recharge Systems - 3 Cans (6oz Each)](https://m.media-amazon.com/images/I/51EGYhEjwTL.jpg)**ZeroR AC Refrigerant R134a Replacement - Eco-Friendly 100% Natural Hydrocarbon Gas - Compatible and Easy to Install with R134a A/C Recharge Systems - 3 Cans (6oz Each)** ZeroR**$37.55**4.1★534 reviews](https://www.amazon.com/dp/B0DRTPMGY6) [![A/C Pro Certified A/C Pro Car Air Conditioner Leak Detector Dye Detection UV Dye Detects Leaks in R-12 and R-134A Condition Systems 1 Oz](https://m.media-amazon.com/images/I/31AWFc5Uc8L.jpg)**A/C Pro Certified A/C Pro Car Air Conditioner Leak Detector Dye Detection UV Dye Detects Leaks in R-12 and R-134A Condition Systems 1 Oz** A/C Pro**$7.85**4.6★1,654 reviews](https://www.amazon.com/dp/B008QDXPFK) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Value For Money**17% *“Worth every penny”* **Quality-Overall**14% *“solid quality kit”* **Advertised Vs Actual Product**12% *“As advertised”* **Leak-Proof**11% *“No leakage”* **Ease Of Use**10% *“Ease of use”* **Efficiency**10% *“3 cans worked great”* **Coolant**4% *“Good price, right refrigerant”* **Brightness/Shine/Glow**3% *“Glows bright”* **Charging**2% *“Charged up the system smoothly”* **Color**2% *“Nice and bright, shows dye very well”* ### **What buyers complain about ** **Leak-Proof**19% *“Leaked everywhere”* **Functionality-Overall**11% *“Doesn't do what it is supposed to”* **Advertised Vs Actual Product**8% *“False advertising”* **Quality-Overall**7% *“No Quality control”* **Compatibility-Overall**7% *“Not compatible”* **Value For Money**6% *“Just watest money”* **Instructions/User Manual/Troubleshooting**5% *“instructions are not correct”* **Size-Overall**3% *“Does not fit my vehicle”* **Heating**3% *“Hot out here”* **Color**3% *“2 bottles and the dye is invisible”* #### **Top return reasons**- Compatibility-Overall18% - Leak-Proof17% - Advertised Vs Actual Product12% - Functionality-Overall8% - Size-Overall7% - Color5% - Value For Money4% - Defective Material/Parts3% - Brightness/Shine/Glow3% - Coolant2%