---
title: "Ac Leak Sealer — $239K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/ac-leak-sealer"
last_updated: "2026-08-09T18:15:46.246Z"
locale: en
meta:
description: "Niche score 63/100 · $239K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 63/100 · $239K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Ac Leak Sealer — $239K/yr Amazon US Niche (2026) - Flapen"
---
# **ac leak sealer**
**Worth a look**
Shows low returns (0.7%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 45Growth 96Conversion 55Competition 23Returns 97Price range 95Avg price 95Brand share 6Review moat 70Quality gap 95
**Returns**
**Incredible****0.7%**
return rate — above 5% kills the launch gate
**Growth**
**Incredible****+158.9%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Incredible****4.0★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Incredible****$39.17**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$22.44–$93.50**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****691.57**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****4.6%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Okay****$239K**
$239K/yr · 132K searches
**Competition**
**Bad****72%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****97%**
top-5 brand share — brand-locked demand
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** Quality Gap**](https://flapen.com/research/niches?market=us&signal=quality_gap "Avg rating < 4.0")
According to Flapen's Amazon United States niche tracking, ac leak sealer is a $239K/yr Amazon United States market (132K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Worth a look — 63/100.
Data updated Jul 11, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **ac leak sealer market data**
- **Units sold / yr**
- **8K–10K**
- avg 500–750/product
- **Revenue / yr**
- **$313K–$392K**
- units × avg price
- **Conversion rate**
- **4.6%**
- **Avg BSR**
- **#101**
- **Page quality**
- **0%**
- **Prime**
- **86%**
- **Sponsored**
- **71%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **74 months**
- **Avg seller age**
- **165 days**
## **Competition & brand share**
The top 5 products capture 72% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **▼falling
**Sellers**
**69**
**Top-5 brand share**
**97%**
Top 20: 100%
**Top-5 click share**
**72%**
Top 20: 100%
**Open market**
**0%**
- Leak Saver64% - ERRECOM16% - BlueDevil Products9% - TSI Supercool5% - Nu-Calgon4% - InterDynamics3%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +158.9% search growth over the last 90 days.
6K4KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 8.1×
[**Open Trend **](https://flapen.com/research/us/automotive/ac-leak-sealer/trend)
## **Top ac leak sealer search terms**
- **ac leak sealer**18K/yr+137.8%3.3% conv. - **ac stop leak**18K/yr+145.5%1.9% conv. - **ac stop leak r134a**11K/yr+171.6%1.1% conv. - **red angel ac stop leak**9K/yr+138.2%2.6% conv. - **hvac leak sealer**7K/yr+175.1%4.7% conv. - **r22 stop leak**6K/yr+391.3%4.1% conv. - **stop leak ac refrigerant**5K/yr+126.2%2.2% conv. - **r134a stop leak**6K/yr+134.0%1.1% conv. - **410a refrigerant stop leak**5K/yr+158.0%3.8% conv. - **leak saver direct inject ac leak sealer**5K/yr+268.1%11.2% conv. [**All search terms **](https://flapen.com/research/us/automotive/ac-leak-sealer/search-terms)
## **Top ac leak sealer products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%10%$24K20%$48K30%$72K40%$96K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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 rev](https://www.amazon.com/dp/B071VMXMLS) [2**Leak Saver Direct Inject Ultimate 3-in-1 | AC Refrigerant Leak Sealer | with UV Dye & Moisture Remover | for Most HVAC Systems Up to 5 Tons - Professional AC Leak Sealer - AC Stop Leak**Leak Saver**$46.37**4.3★948 rev](https://www.amazon.com/dp/B086MG3S7D) [3**Leak Saver Direct Inject UV - Refrigerant Leak Sealer with Added UV Dye to Detect Large Leaks - for AC Refrigeration and Automotive Systems Up to 5 Tons - Compatible with All Refrigerants**Leak Saver**$36.48**4.2★1,454 rev](https://www.amazon.com/dp/B077Y3CNMW) [4**BlueDevil Products Red Angel 49496 A/C Stop Leak - 2 Ounce**BlueDevil Products**$25.13**4.3★832 rev](https://www.amazon.com/dp/B00NSRVP6A) [5**Extreme Ultra A/C Leak Stop Direct Easy Inject Solution for HVAC&R Systems up to 6 Tons with 1/4 SAE Charging Port for all Refrigerants and Oils | Reusable Refillable US Patented - 0.2 fl oz (6 mL)**ERRECOM**$33.74**4.0★64 rev](https://www.amazon.com/dp/B0F38NS3W3)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**ERRECOM Extreme A/C Leak Stop for Vehicle A/C Systems | 3.6 OZ Aerosol Can**ERRECOM**$30.32**42 rev7mo ago](https://www.amazon.com/dp/B0G6FLGWH9) [**Extreme Ultra A/C Leak Stop Direct Easy Inject Solution for HVAC&R Systems up to 6 Tons with 1/4 SAE Charging Port for all Refrigerants and Oils | Reusable Refillable US Patented - 0.2 fl oz (6 mL)**ERRECOM**$33.74**64 rev1y ago](https://www.amazon.com/dp/B0F38NS3W3) [**Errecom Extreme Ultra | A/C Leak Stop for HVAC/R and Vehicle A/C Systems | Works with All Refrigerants Lubricants and Systems Up to 6 Tons (21 kW) | no Adapters Included | 0.2 fl oz (6 mL) Cartridge**ERRECOM**$22.44**40 rev1y ago](https://www.amazon.com/dp/B0DC75PVWK) [**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**139 rev1y ago](https://www.amazon.com/dp/B0DBM58DXK) [**Leak Saver Direct Inject Ultimate 3-in-1 | AC Refrigerant Leak Sealer | with UV Dye & Moisture Remover | for Most HVAC Systems Up to 5 Tons - Professional AC Leak Sealer - AC Stop Leak**Leak Saver**$46.37**948 rev6y ago](https://www.amazon.com/dp/B086MG3S7D)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**ERRECOM Extreme A/C Leak Stop for Vehicle A/C Systems | 3.6 OZ Aerosol Can**ERRECOM**$30.32**2.6★**▲ 132%**](https://www.amazon.com/dp/B0G6FLGWH9) [**Errecom Extreme Ultra | A/C Leak Stop for HVAC/R and Vehicle A/C Systems | Works with All Refrigerants Lubricants and Systems Up to 6 Tons (21 kW) | no Adapters Included | 0.2 fl oz (6 mL) Cartridge**ERRECOM**$22.44**3.9★**▲ 69%**](https://www.amazon.com/dp/B0DC75PVWK) [**Leak Saver Direct Inject AC Leak Sealer 3-Pack | AC Stop Leak for Most HVAC Systems Up to 5 Tons | Works with All Systems & AC Refrigerants | Made in the USA**Leak Saver**$93.50**4.3★**▲ 33%**](https://www.amazon.com/dp/B075KVNKLG) [**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★**▲ 19%**](https://www.amazon.com/dp/B01981J6F6) [**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★**— 8%**](https://www.amazon.com/dp/B071VMXMLS)
**~~View all trending →~~**
## **What buyers say about ac leak sealer**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Leak-Proof**26%
*“I dont have a leak”*
**Quality-Overall**14%
*“Extremely pleased with results so far”*
**Ease Of Use**12%
*“Easy to Use”*
**Advertised Vs Actual Product**6%
*“As advertised”*
**Value For Money**6%
*“It is well worth the cost”*
**Instructions/User Manual/Troubleshooting**4%
*“Instructions were easy to follow”*
**Efficiency**4%
*“Works great for fridges”*
**Maintenance And Repair**4%
*“avoided a costly repair for the customer”*
**Durability**2%
*“As far as durability”*
**Assembly/Installation**2%
*“- Very easy application process without needing extra tools”*
### **What buyers complain about **
**Leak-Proof**33%
*“Leaks”*
**Functionality-Overall**16%
*“Nothing will flow in or out”*
**Value For Money**7%
*“value is terrible”*
**Instructions/User Manual/Troubleshooting**4%
*“Follow the instructions EXACTLY, TO THE LETTER, and DO NOT DEVIATE from the steps or the order they are in”*
**Advertised Vs Actual Product**4%
*“So, product DID NOT DO what was promised/advertized”*
**Design-Overall**3%
*“It's a terrible product design”*
**Defective Material/Parts**3%
*“Product did not work at all”*
**Durability**2%
*“broke almost immediately”*
**Pressure**2%
*“It didnt seem like there was much pressure at all in the canister”*
**Maintenance And Repair**2%
*“destroy my AC system or magically repair it”*
### **Top return reasons **
**Leak-Proof**28%
**Advertised Vs Actual Product**14%
**Compatibility-Overall**12%
**Functionality-Overall**11%
**Defective Material/Parts**7%
**Value For Money**5%
**Product Condition**4%
**Pressure**3%
**Instructions/User Manual/Troubleshooting**3%
**Add-Ons/Attachments**2%
## **Common questions**
- **Is ac leak sealer profitable to sell on Amazon United States?**
- The niche generates $239K/yr across 14 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +158.9%. Flapen's verdict: Worth a look (63/100).
- **How competitive is the ac leak sealer niche?**
- 6 brands and 69 sellers compete. The top 5 products take 72% of clicks and top 5 brands hold 97% of demand.
- **What do buyers complain about in ac leak sealer?**
- Top complaints mined from reviews: Leak-Proof, Functionality-Overall, Value For Money. The return rate is 0.7%.
- **When does demand for ac leak sealer peak?**
- Demand peaks in May–Jun–Jul–Aug; the busiest month runs 8.1× the quietest.
- **What does it cost to enter the ac leak sealer niche?**
- Listings span $22.44–$93.50; the average listing price is $39.17 (sweet spot $15–$100). The average incumbent carries 692 reviews — the moat a new listing must climb.
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