3/8 npt
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible12.2%search→purchase rate — share of searches ending in a sale
Review moat
Good1,000.4avg incumbent reviews — the moat a new listing must climb
Returns
Good2.8%return rate — above 6% kills the launch gate
Avg price
Okay$11.93avg listing price — sweet spot $15–$100
Price range
Okay$5.33–$21.33cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+7.5%90-day search growth — must beat 0% to launch
Competition
Bad80%top-5 click share — a locked-up shelf
Market size
Bad$59K$59K/yr · 41K searches
Quality gap
Bad4.8★avg incumbent rating — lower means beatable quality
Brand share
Bad100%top-5 brand share — brand-locked demand
Competition
The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 falling
Sellers
7
Top-5 brand share
100%
Open market
0%
- EVIL ENERGY80%
- lanstixr8%
- Breezliy6%
- SUNGATOR5%
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 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
EVIL ENERGY 6AN Male Flare to 3/8 NPT Pipe Fitting Adapter Aluminum Straight Black 2PCS
EVIL ENERGY$12.784.8★2,149 rev
Lanstixr 6AN Male Flare to 3/8 NPT Male Hose Pipe Fitting Adapter Union Connector Aluminum Straight Black Anodized 2PCS
lanstixr$7.454.6★33 rev
EVIL ENERGY 6AN Male Flare to 3/8 NPT Pipe Fitting Adapter Aluminum Straight Black 4PCS
EVIL ENERGY$21.334.8★207 rev
Breezliy 6AN Male Flare to 3/8 NPT Pipe Fitting Adapter Aluminum Straight Black 2PCS
Breezliy$7.834.6★313 rev
EVIL ENERGY 6AN to 3/8 NPT Male 90 Degree Fitting Adapter Aluminum
EVIL ENERGY$10.934.8★1,393 rev
Newest
by launch date
EVIL ENERGY 3/8 NPT Male to 3/8 Barb Fitting Adapter Straight Aluminum Black
EVIL ENERGY$9.82426 rev
Lanstixr 6AN Male Flare to 3/8 NPT Male Hose Pipe Fitting Adapter Union Connector Aluminum Straight Black Anodized 2PCS
lanstixr$7.4533 rev
EVIL ENERGY 6AN Male Flare to 3/8 NPT Pipe Fitting Adapter Aluminum Straight Black 4PCS
EVIL ENERGY$21.33207 rev
EVIL ENERGY 6AN to 3/8 NPT Male 90 Degree Fitting Adapter Aluminum 2PCS
EVIL ENERGY$19.472,149 rev
EVIL ENERGY 6AN Male Flare to 3/8 NPT Pipe Fitting Adapter Aluminum Straight Black 2PCS
EVIL ENERGY$12.782,149 rev
Trending
90-day click momentumEVIL ENERGY 3/8 NPT Male to 3/8 Barb Fitting Adapter Straight Aluminum Black
EVIL ENERGY$9.824.8★
Lanstixr 6AN Male Flare to 3/8 NPT Male Hose Pipe Fitting Adapter Union Connector Aluminum Straight Black Anodized 2PCS
lanstixr$7.454.6★
EVIL ENERGY 6AN to 3/8 NPT Male 90 Degree Fitting Adapter Aluminum 2PCS
EVIL ENERGY$19.474.8★
EVIL ENERGY 6AN Male to 3/8 Hardline Compression Fitting Adapter Aluminum Black 2PCS
EVIL ENERGY$15.394.8★
EVIL ENERGY 6AN Male Flare to 3/8 NPT Pipe Fitting Adapter Aluminum Straight Black
EVIL ENERGY$8.984.8★
Demand
Weekly Amazon search volume, last 40 weeks — +7.5% search growth over the last 90 days.Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Fit right”
“Quality product”
“Great value”
“Easy to install”
“The 90-degree turn helped guide them just right”
“As listed”
“Works very well”
“Works good threading into my Holley fuel pressure regulator”
“Good Fuel Lines”
“Works perfect no leaks”
What buyers complain about
“they all leaked”
“Just remember to use the appropriate tools because these are soft metal”
“From the reviews I could only conclude that the fittings were not tested under pressure or they were used only on Plain steel lines”