gas can vent
Skip itBrand-locked demand (top 5 brands take 91% of clicks) — this niche doesn't clear our bar today.
Conversion
Great10.5%search→purchase rate — share of searches ending in a sale
Returns
Great1.6%return rate — above 6% kills the launch gate
Growth
Good+51.4%90-day search growth — must beat 0% to launch
Review moat
Okay2,408.31avg incumbent reviews — the moat a new listing must climb
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$142K$142K/yr · 152K searches
Price range
Okay$3.94–$19.90cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Okay70%top-5 click share — leaders hold, buyers still browse
Avg price
Okay$8.91avg listing price — sweet spot $15–$100
Brand share
Bad91%top-5 brand share — brand-locked demand
Competition
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.Brands
11 falling
Sellers
13
Top-5 brand share
91%
Open market
7%
- Magicfour29%
- MEAJOO25%
- Mr. Yellow Cap19%
- Giozoc10%
- TaoTazon9%
- Kilwani2%
- Open — no brand owns it (5 brands, 7%)
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 16 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
MEAJOO 5-Pack Gas Can Vent Cap Kit - Yellow Vent Plugs for Old Style Water & Gas Jugs Fuel Can Gallon Vents - Replacement Caps for Most Plastic Gas Cans
MEAJOO$4.014.5★706 rev
Magicfour Gas Can Vent Cap 3 Pack Fuel Gas Vent Kit Replacement Vent Plug for Gas Fuel Water Can Jug to Allow Faster Flowing No Wire Pull Needed
Magicfour$8.104.6★7,514 rev
Gas can Vents for Plastic Gas Cans Gas Can Vent Caps Yellow Fuel Gas Can Jug Vents/Cap Replacement
Giozoc$5.784.4★374 rev
Mr. Yellow Cap 10pcs Gas Can Vents For Plastic Gas Cans - Yellow Plastic Can Vent Caps Gas Breather Vent Kit For Blitz Gas Can Gas Vent Cap For 5 Gallon Can Air Vent Kit For Gasoline & Water
Mr. Yellow Cap$5.404.5★2,123 rev
Gas Can Vent Caps | 6 Pack Fuel Gas Tank Vent Caps | Metal Gas Can Replacement Vent Plug | Leak-Proof Gas Jug Vent Caps| Tank Exhaust Caps for Faster Flow
TaoTazon$9.854.7★519 rev
Newest
by launch date
Upgraded Gas Can Spout Replacement 3-Pack Gas Can Nozzle Leak-Proof Design with Flexible 8.1-inch Long Spouts Easy Pour Fuel Can Vent Caps Drill Bit Fit for Most 1/2/5/10 Gal Plastic Gas Cans
Kilwani$8.91437 rev
ZOOYL Gas Can Vent: 10-Second Easy Install Fast Fuel Flow 3-Pack Durable Stainless Steel Universal Fit Bonus Silicone Cap Attachment
ZOOYL$13.915 rev
MEAJOO 2PCS Gas Can Vent Caps Rear Vent Screw Caps for Replacement Fit Most Fuel Diesel Kerosene Jugs (Black)
MEAJOO$3.94142 rev
Gas can Vents for Plastic Gas Cans Gas Can Vent Caps Yellow Fuel Gas Can Jug Vents/Cap Replacement
Giozoc$5.78374 rev
Gas Can Spout Replacement Anti-Spill Gas Can Nozzle Replacement 2-Kit Upgraded Spouts No Leaky with Flexible Nozzle Can Vent Caps Fit for Most 1/2/5/10 Gal Can
Cyluer$7.775,315 rev
Trending
90-day click momentum
3pcs Yellow Gas Can Vent Caps - Can Vents For Plastic Cans & Metal Fuel Jugs Vent Kit For Blitz Gas Can Fuel Can Vent Caps For 5 Gallon Can Air Vent Kit
Mr. Yellow Cap$4.464.5★
ZOOYL Gas Can Vent: 10-Second Easy Install Fast Fuel Flow 3-Pack Durable Stainless Steel Universal Fit Bonus Silicone Cap Attachment
ZOOYL$13.915.0★
Mr. Yellow Cap 4pcs Blitz Gas Can Vents For Plastic Gas Cans - Plastic Gas Can Vent Caps Replacement Gas Can Breather Vent Kit Fuel Vent Caps For Gas Cans Suitable ForPlastic And Metal Fuel Jugs
Mr. Yellow Cap$5.514.5★
Mr. Yellow Cap 10pcs Gas Can Vents For Plastic Gas Cans - Yellow Plastic Can Vent Caps Gas Breather Vent Kit For Blitz Gas Can Gas Vent Cap For 5 Gallon Can Air Vent Kit For Gasoline & Water
Mr. Yellow Cap$5.404.5★
Upgraded Gas Can Spout Replacement 3-Pack Gas Can Nozzle Leak-Proof Design with Flexible 8.1-inch Long Spouts Easy Pour Fuel Can Vent Caps Drill Bit Fit for Most 1/2/5/10 Gal Plastic Gas Cans
Kilwani$8.914.2★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +51.4% search growth over the last 90 days.Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 2.5×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“FIT GREAT”
“They seem well made”
“Easy install”
“As advertised”
“Works well”
“They dont leak”
“Great value”
“Makes gas flow so much better”
“Easy to use”
“you have a perfect vent path creating a good even flow of gas”
What buyers complain about
“Caps don't fit”
“Leaks other wise”
“Obviously the plastic used by the manufacturer is of a inferior quality”
“causes it to break”
“Brittle”
“Also, installation instructions are not included”
“Does not fit standard gas cans”
“I assume this is a manufacturing defect in the plastic mold”
“Doesn't seem to do the job”
“Not worth the money”