---
title: "24 Gram Co2 Cartridge for Life Vest — $191K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/sports-outdoors/24-gram-co2-cartridge-for-life-vest"
last_updated: "2026-08-09T22:05:11.627Z"
locale: en
meta:
description: "Niche score 60/100 · $191K/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 60/100 · $191K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "24 Gram Co2 Cartridge for Life Vest — $191K/yr Amazon US Niche (2026) - Flapen"
---
# **24 gram co2 cartridge for life vest**
**Worth a look**
Shows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 38Growth 84Conversion 96Competition 16Returns 100Price range 83Avg price 95Brand share 18Review moat 74Quality gap 53
**Returns**
**Incredible****0.0%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****13.3%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$27.28**
avg listing price — sweet spot $15–$100
**Growth**
**Great****+82.4%**
90-day search growth — must beat 0% to launch
**Price range**
**Great****$8.69–$109.16**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****527.73**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$191K**
$191K/yr · 53K searches
**Brand share**
**Bad****93%**
top-5 brand share — brand-locked demand
**Competition**
**Bad****81%**
top-5 click share — a locked-up shelf
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, 24 gram co2 cartridge for life vest is a $191K/yr Amazon United States market (53K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 60/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **24 gram co2 cartridge for life vest market data**
- **Units sold / yr**
- **8K–10K**
- avg 500–750/product
- **Revenue / yr**
- **$218K–$273K**
- units × avg price
- **Conversion rate**
- **13.3%**
- **Avg BSR**
- **#94**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **55%**
- **Out of stock**
- **5.0%**
- **Avg brand age**
- **62 months**
- **Avg seller age**
- **177 days**
## **Competition & brand share**
The top 5 products capture 81% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**8 **—flat
**Sellers**
**82**
**Top-5 brand share**
**93%**
Top 20: 100%
**Top-5 click share**
**81%**
Top 20: 100%
**Open market**
**5%**
- QSBENI50% - CODIEKEY15% - BKICKI9% - XVAJT9% - Onyx9% - Owntop3% - Open — no brand owns it (2 brands, 5%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +82.4% search growth over the last 90 days.
2K1KSpike '24Holiday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 5.6×
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/24-gram-co2-cartridge-for-life-vest/trend)
## **Top 24 gram co2 cartridge for life vest search terms**
- **24 gram co2 cartridge for life vest**11K/yr+97.5%12.5% conv. - **life jacket rearming kit**6K/yr+82.7%5.0% conv. - **24g co2 cartridges for life vest**4K/yr+225.3%10.9% conv. - **life jacket co2 cartridges**5K/yr+68.0%7.9% conv. - **inflatable life jacket co2 cartridge**5K/yr+51.1%5.7% conv. - **a/m 24 rearming kit**3K/yr+105.1%16.2% conv. - **co2 cartridges for life vest**4K/yr+209.8%6.5% conv. - **onyx rearming kit**3K/yr+44.7%8.9% conv. - **onyx am24 rearming kit**3K/yr+36.1%12.3% conv. - **am24 rearming kit**2K/yr+65.3%14.6% conv. [**All search terms **](https://flapen.com/research/us/sports-outdoors/24-gram-co2-cartridge-for-life-vest/search-terms)
## **Top 24 gram co2 cartridge for life vest 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%15%$29K30%$57K45%$86K60%$115K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**QSBENI 24 Gram CO2 Cartridge Life Jacket Rearming Kit Auto/Manual PFDfor Inflatable Life VestRefill Metal Bottles 1/2-inch CO2 Cartridges**QSBENI**$8.69**4.4★229 rev](https://www.amazon.com/dp/B0D3WN62LD) [2**24G Co2 Cartridge Cylinder for Life Vest Accessory for C02 PFD Rearming Kit for Auto/Manual Inflating Life Jacket for Adult Used for Fishing Surfing Sea/Ocean Activities 2Pack**CODIEKEY**$21.01**4.5★244 rev](https://www.amazon.com/dp/B0F2B8T3RD) [3**CO2 Rearming Kit Cylinder Cartridge Tank for Automatic/Manual Inflatable Life Jacket Lifejacket Life Vest Waist Pack Belt Lifesaving PFD 24 Gram**BKICKI**$9.01**4.4★348 rev](https://www.amazon.com/dp/B0CTCFTLQ2) [4**ONYX A/M 24 All Clear Rearming Kit**Onyx**$26.80**4.5★278 rev](https://www.amazon.com/dp/B07X37656M) [5**24 Gram CO2 Cartridge Life Jacket Rearming Kit Auto/Manual PFD Metal Cartridge for Life Jacket CO2 Cartridges 2Pack**QSBENI**$17.29**4.4★229 rev](https://www.amazon.com/dp/B0GWWMBT3W)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**24 Gram CO2 Cartridge Life Jacket Rearming Kit Auto/Manual PFD Metal Cartridge for Life Jacket CO2 Cartridges 2Pack**QSBENI**$17.29**229 rev3mo ago](https://www.amazon.com/dp/B0GWWMBT3W) [**Owntop 24 Gram CO2 Cartridges PFD Rearming Kit 1/2 inch Thread for Automatic/Manual Inflatable Life Jacket C02 Cylinder Metal Tank 24g 2 Pack**Owntop**$19.91**16 rev7mo ago](https://www.amazon.com/dp/B0GBWR8NY7) [**4 Pack 24 Gram CO2 Cartridges 1/2-inch Replacement Thread CO2 Cartridge for Aldult Auto Manual Version of Inflatable Life Jacket Vests Waist Belt Personal Flotation Device Cylinder PFD Rearming Kit**XDDPRO**$36.26**49 rev1y ago](https://www.amazon.com/dp/B0F66R7MNX) [**24G Co2 Cartridge Cylinder for Life Vest Accessory for C02 PFD Rearming Kit for Auto/Manual Inflating Life Jacket for Adult Used for Fishing Surfing Sea/Ocean Activities 2Pack**CODIEKEY**$21.01**244 rev1y ago](https://www.amazon.com/dp/B0F2B8T3RD) [**24 Gram CO2 Cartridge for Life Vest Auto/Manual PFD Life Jacket Rearming Kit Metal Cartridge for Life Jacket CO2 Cartridges 24 Gram Co2 Cartridges 1/2 Thread 1 Pack**XVAJT**$9.43**206 rev1y ago](https://www.amazon.com/dp/B0DB1Z9SK3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**24 Gram CO2 Cartridge Life Jacket Rearming Kit Auto/Manual PFD Metal Cartridge for Life Jacket CO2 Cartridges 2Pack**QSBENI**$17.29**4.4★**▲ 76%**](https://www.amazon.com/dp/B0GWWMBT3W) [**BLUESTORM Cirrus26 Inflatable PFD Life Jackets for Adults | US Coast Guard Approved Automatic Life Vest w/Manual Override Convertibility (Hi Vis)**BLUESTORM**$109.16**4.6★**▲ 61%**](https://www.amazon.com/dp/B08QJQQLMZ) [**Owntop 24 Gram CO2 Cartridges PFD Rearming Kit 1/2 inch Thread for Automatic/Manual Inflatable Life Jacket C02 Cylinder Metal Tank 24g 2 Pack**Owntop**$19.91**4.5★**▲ 37%**](https://www.amazon.com/dp/B0GBWR8NY7) [**QSBENI 24 Gram CO2 Cartridge Life Jacket Rearming Kit Auto/Manual PFDfor Inflatable Life VestRefill Metal Bottles 1/2-inch CO2 Cartridges**QSBENI**$8.69**4.4★**▲ 29%**](https://www.amazon.com/dp/B0D3WN62LD) [**24 Gram CO2 Cartridge for Life Vest Auto/Manual PFD Life Jacket Rearming Kit Metal Cartridge for Life Jacket CO2 Cartridges 24 Gram Co2 Cartridges 1/2 Thread 2 Pack**XVAJT**$18.25**4.3★**▲ 20%**](https://www.amazon.com/dp/B0DB22TBYC)
**~~View all trending →~~**
## **What buyers say about 24 gram co2 cartridge for life vest**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Advertised Vs Actual Product**21%
*“Works as advertised”*
**Value For Money**17%
*“is significantly cheaper than name brand”*
**Size-Overall**14%
*“Fit perfectly”*
**Quality-Overall**11%
*“Perfect replacement for original”*
**Efficiency**7%
*“It works”*
**Ease Of Use**6%
*“easy to use”*
**Certifications**3%
*“Easy change for compliance”*
**Compatibility-Overall**3%
*“working great in my Onyx 24 vest”*
**Charging**3%
*“now we have a spare charger on hand”*
**Instructions/User Manual/Troubleshooting**3%
*“Just follow the instructions”*
### **What buyers complain about **
**Size-Overall**19%
*“Some need larger”*
**Quality-Overall**12%
*“No quality control”*
**Compatibility-Overall**10%
*“purchased and it didn't fit my Onyx A/M 24”*
**Advertised Vs Actual Product**7%
*“Bobbin does not fit OEM as stated”*
**Durability**7%
*“they all cracked apart”*
**Value For Money**7%
*“way too expensive”*
**Assembly/Installation**7%
*“broke on installation so this product was not made correctly so I never got to use it”*
**Defective Material/Parts**3%
*“Broken parts”*
**Charging**3%
*“I didn't receive the charge disk with this order”*
**Ease Of Use**3%
*“So, can't use”*
### **Top return reasons **
**Advertised Vs Actual Product**100%
## **Common questions**
- **Is 24 gram co2 cartridge for life vest profitable to sell on Amazon United States?**
- The niche generates $191K/yr across 11 tracked products. 1 of 2 products launched in the last 360 days are still selling. 90-day search growth is +82.4%. Flapen's verdict: Worth a look (60/100).
- **How competitive is the 24 gram co2 cartridge for life vest niche?**
- 8 brands and 82 sellers compete. The top 5 products take 81% of clicks and top 5 brands hold 93% of demand.
- **What do buyers complain about in 24 gram co2 cartridge for life vest?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Compatibility-Overall. The return rate is 0.0%.
- **When does demand for 24 gram co2 cartridge for life vest peak?**
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 5.6× the quietest.
- **What does it cost to enter the 24 gram co2 cartridge for life vest niche?**
- Listings span $8.69–$109.16; the average listing price is $27.28 (sweet spot $15–$100). The average incumbent carries 528 reviews — the moat a new listing must climb.
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