33 gram co2 cartridge for life vest
Worth a lookShows low returns (0.0%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Conversion
Incredible14.1%search→purchase rate — share of searches ending in a sale
Avg price
Incredible$23.77avg listing price — sweet spot $15–$100
Review moat
Great150.77avg incumbent reviews — the moat a new listing must climb
Growth
Great+101.0%90-day search growth — must beat 0% to launch
Price range
Great$10.16–$43.91cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Brand share
Okay83%top-5 brand share — brands hold most of the demand
Competition
Bad78%top-5 click share — a locked-up shelf
Market size
Bad$49K$49K/yr · 15K searches
According to Flapen's Amazon United States niche tracking, 33 gram co2 cartridge for life vest is a $49K/yr Amazon United States market (15K searches/yr). The top 5 brands hold 83% of demand. Verdict: Worth a look — 60/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
33 gram co2 cartridge for life vest market data
- Units sold / yr
- 2K–3K
- avg 100–250/product
- Revenue / yr
- $48K–$59K
- units × avg price
- Conversion rate
- 14.1%
- Avg BSR
- #287
- Page quality
- 0%
- Prime
- 85%
- Sponsored
- 69%
- Out of stock
- 11.5%
- Avg brand age
- 63 months
- Avg seller age
- 186 days
Competition & brand share
The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.Brands
10 rising
Sellers
75
Top-5 brand share
83%
Top 20: 100%
Top-5 click share
78%
Top 20: 100%
Open market
12%
- SKNEXUSS32%
- BKICKI18%
- CODIEKEY14%
- SafeMax10%
- ETDOOM7%
- Lancer Tactical6%
- Open — no brand owns it (4 brands, 12%)
Top 33 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.
All 13 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
SKNEXUSS 33G CO2 Cartridge Cylinder for Life Vest Accessory for CO2 PFD Rearming Kit for Auto/Manual Inflating Life Jacket for Adult Used for Fishing Surfing Sea/Ocean Activities-2pack
SKNEXUSS$18.754.7★5 rev
Quality CO2 Rearming Kit Cylinder Cartridge Tank for Automatic/Manual Inflatable Life Jacket Lifejacket Life Vest Waist Pack Belt Lifesaving PFD 33 Gram
BKICKI$11.184.4★275 rev
33G 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
CODIEKEY$21.444.4★40 rev
Premium CO2 Cartridge for Life Jacket - Auto Version CO2 Rearming Kit Cylinder Tank Canister for Inflatable Lifejacket Life Vest Life Belt Pack PFD CO2 Replacement Refill Size 17G 24G 33G 60G Gram
SafeMax$23.984.6★189 rev
Lancer Tactical 10 Pack of 33g CO2 Cartridges for Airsoft Airguns Automatic/Manual Inflatable Life Jacket Lifejacket Life Vest Waist Pack Belt Lifesaving PFD
Lancer Tactical$43.914.7★13 rev
Newest
by launch dateSKNEXUSS 33G CO2 Cartridge Cylinder for Life Vest Accessory for CO2 PFD Rearming Kit for Auto/Manual Inflating Life Jacket for Adult Used for Fishing Surfing Sea/Ocean Activities-2pack
SKNEXUSS$18.755 rev
SKNEXUSS 33G CO2 Cartridge Cylinder for Life Vest Accessory for CO2 PFD Rearming Kit for Auto/Manual Inflating Life Jacket for Adult Used for Fishing Surfing Sea/Ocean Activities-1pack
SKNEXUSS$10.165 rev
Lancer Tactical 10 Pack of 33g CO2 Cartridges for Airsoft Airguns Automatic/Manual Inflatable Life Jacket Lifejacket Life Vest Waist Pack Belt Lifesaving PFD
Lancer Tactical$43.9113 rev
33G 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
CODIEKEY$21.4440 rev
33Gram CO2 Cylinder Cartridges for Inflatable Life Vest Automatic/Manual Life Jacket Rearming Kit
ETDOOM$11.8853 rev
Trending
90-day click momentum
33Gram CO2 Cylinder Cartridges for Inflatable Life Vest Automatic/Manual Life Jacket Rearming Kit
ETDOOM$20.084.1★
33G 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
CODIEKEY$21.444.4★
SKNEXUSS 33G CO2 Cartridge Cylinder for Life Vest Accessory for CO2 PFD Rearming Kit for Auto/Manual Inflating Life Jacket for Adult Used for Fishing Surfing Sea/Ocean Activities-2pack
SKNEXUSS$18.754.7★
Eyson CO2 Manual Inflatable PFD-Rearming Kit Cartridge Cylinder (33G/ 150N/ Adult)
Eyson$20.334.5★
Premium CO2 Cartridge for Life Jacket - Auto Version CO2 Rearming Kit Cylinder Tank Canister for Inflatable Lifejacket Life Vest Life Belt Pack PFD CO2 Replacement Refill Size 17G 24G 33G 60G Gram
SafeMax$23.984.6★
What buyers say about 33 gram co2 cartridge for life vest
What buyers praise and complain about, mined from review topics.What buyers love
“There what I ordered”
“Perfect fit”
“Great value”
“These re-charging units are great”
“Good quality”
“It connected”
“Easy to do this”
“Works great”
“Easy to install and good quality”
What buyers complain about
“Bad fit”
“Read the directions I wasted the first one”
“Misleading pic”
“both failed after a couple days”
“The CO2 cartridges have dimples causing the indicator to not show green”
“Replacement parts for vest”
“has a design flaw”
“Did not work on the sos brand or the other one i had that said it would fit”
“Pure junk”
“Not worth it”
Common questions
- Is 33 gram co2 cartridge for life vest profitable to sell on Amazon United States?
- The niche generates $49K/yr across 13 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +101.0%. Flapen's verdict: Worth a look (60/100).
- How competitive is the 33 gram co2 cartridge for life vest niche?
- 10 brands and 75 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 83% of demand.
- What do buyers complain about in 33 gram co2 cartridge for life vest?
- Top complaints mined from reviews: Size-Overall, Instructions/User Manual/Troubleshooting, Advertised Vs Actual Product. The return rate is 0.0%.
- What does it cost to enter the 33 gram co2 cartridge for life vest niche?
- Listings span $10.16–$43.91; the average listing price is $23.77 (sweet spot $15–$100). The average incumbent carries 151 reviews — the moat a new listing must climb.