4an to 1/8 Npt
FailThe top 5 brands take 96% of clicks, so 4an to 1/8 Npt is a Fail.
- Flapen Score
- 36 / 100Ranks 6,608 of 7,287 Automotive niches · −13 vs the category median of 4936
- Market size
- $40K/yr40K searches / yr
- 90-day growth
- +10.6%search demand this quarter
- Competition
- 72%top-5 click share · 6 brands · 29 sellers
Flapen Score
4an to 1/8 Npt against its category
The dotted line is the Automotive average. Past it, 4an to 1/8 Npt is stronger. Inside it, weaker.
Market
The 4an to 1/8 Npt market on Amazon at a glance
Shoppers on Amazon United States searched for 4an to 1/8 Npt 40K times last year and spent an estimated $40K. The top 5 brands take 96% of clicks. Demand peaks in Apr. Flapen scores it 36 out of 100, a Fail.
01 · Demand
An estimated 9.1% of those searches ended in a purchase.
Shoppers searched for this 40K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 9.1% of those searches ended in a purchase. Searches in the last 90 days moved +10.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $40K a year.
- Searches, last 12 months
- 40K
- Growth, 90 days vs prior 90
- +10.6%
- Conversion, latest week
- 9.1%
- Market size, estimated
- $40Ka year
- Peak month
- April1.9× the quietest month
- Top search term
- 1/8 npt14K searches a year
02 · Price
A sale here is worth $11.12.
Listings sell for $11.12 on average, from $6.00 to $18.82. Amazon reports units sold in ranges. This niche sold 5K to 6K a year. The average listing sells 250 to 500 of them. At $11.12 that is $3K to $6K a year per listing.
- Average price
- $11.12under the $15 to $100 sweet spot
- Price range
- $6.00–$18.82
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 5K–6K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $3K–$6K
- Returns
- 2.0%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
93% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #215 within Fuel System. It carries 525 reviews at 4.74 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 93%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #215in Fuel System
- Average rating
- 4.74 starsAmazon United States average 4.42 stars
- Average reviews
- 525per listing
- Listings tracked
- 14
04 · Newcomers
0 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 50 months on average, so the names here are settling in.
- Launched, last 12 months
- 1
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 50 months
Products
Top 4an to 1/8 Npt products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 10, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
EVIL ENERGY 4AN Male Flare to 1/8 NPT Pipe Fitting Adapter Aluminum Straight Black 2PCS
- Price
- $9.90
- Rating
- 4.8/5
- Reviews
- 2,149
- Age
- 4y ago

EVIL ENERGY 4AN to 1/8 NPT Male 90 Degree Fitting Adapter Aluminum
- Price
- $10.09
- Rating
- 4.8/5
- Reviews
- 1,393
- Age
- 4y ago

Ucreative 4AN Male Flare to 1/8 NPT Pipe Fitting Adapter Aluminum Straight Black 2Pcs
- Price
- $6.63
- Rating
- 4.6/5
- Reviews
- 362
- Age
- 3y ago

KOOTANS 4pcs Brass Hose Barb Fittings 1/4 Hose Barb to 1/8 NPT Male Thread Air Hose Fittings Brass Quick Coupler Air M Type Adapter Connector Fitting
- Price
- $7.00
- Rating
- 4.7/5
- Reviews
- 1,619
- Age
- 7y ago

EVIL ENERGY 4AN Male Flare to 1/8 NPT Pipe Fitting Adapter Stainless Steel Straight
- Price
- $12.02
- Rating
- 4.8/5
- Reviews
- 55
- Age
- 2y ago
Trending
estimated 90-day click momentum
Lanstixr 4AN Male Flare to 1/8 NPT Male Hose Pipe Fitting Adapter Union Connector Aluminum Straight Black Anodized 2PCS
- Price
- $6.00
- Rating
- 4.6/5
- Reviews
- 33
- Age
- 7mo ago

Podavelle 4AN Male Flare to 1/8 NPT Pipe Male Stainless Steel Straight Fitting Adapter Union Connector 2PCS
- Price
- $17.74
- Rating
- 4.8/5
- Reviews
- 98
- Age
- 1y ago

Podavelle 4AN Male Flare to 1/8 NPT Pipe Male 90 Degree Elbow Fitting Adapter Union Aluminum Black Pack of 2
- Price
- $16.84
- Rating
- 4.8/5
- Reviews
- 504
- Age
- 2y ago

KOOTANS 12pcs Brass Pipe Fitting NPT Hex Nipple Coupling 1/8 x 1/8 NPT Male Pipe 1/8 x 1/8 NPT Female Pipe Fittings Set (6 Nipple & 6 Coupling)
- Price
- $9.85
- Rating
- 4.6/5
- Reviews
- 95
- Age
- 2y ago

EVIL ENERGY 4AN Male Flare to 1/8 NPT Pipe Fitting Adapter Stainless Steel Straight
- Price
- $12.02
- Rating
- 4.8/5
- Reviews
- 55
- Age
- 2y ago
Newest
by launch date
Lanstixr 4AN Male Flare to 1/8 NPT Male Hose Pipe Fitting Adapter Union Connector Aluminum Straight Black Anodized 2PCS
- Price
- $6.00
- Rating
- 4.6/5
- Reviews
- 33
- Age
- 7mo ago

Podavelle 4AN Male Flare to 1/8 NPT Pipe Male Stainless Steel Straight Fitting Adapter Union Connector 2PCS
- Price
- $17.74
- Rating
- 4.8/5
- Reviews
- 98
- Age
- 1y ago

EVIL ENERGY 4AN Male Flare to 1/8 NPT Pipe Fitting Adapter Stainless Steel Straight
- Price
- $12.02
- Rating
- 4.8/5
- Reviews
- 55
- Age
- 2y ago

Podavelle 4AN Male Flare to 1/8 NPT Pipe Male 90 Degree Elbow Fitting Adapter Union Aluminum Black Pack of 2
- Price
- $16.84
- Rating
- 4.8/5
- Reviews
- 504
- Age
- 2y ago

KOOTANS 12pcs Brass Pipe Fitting NPT Hex Nipple Coupling 1/8 x 1/8 NPT Male Pipe 1/8 x 1/8 NPT Female Pipe Fittings Set (6 Nipple & 6 Coupling)
- Price
- $9.85
- Rating
- 4.6/5
- Reviews
- 95
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 72% of clicks. A locked shelf that new listings rarely crack.
Brands
6 falling
Sellers
29
Est. top-5 brand share
96%
Top 20: 100%
Est. top-5 click share
72%
Top 20: 100%
Open market
0%
- EVIL ENERGY59%
- Podavelle15%
- Ucreative9%
- KOOTANS8%
- Vibrant Performance4%
- lanstixr4%
- Open — no brand owns it (0%)
Demand
4an to 1/8 Npt search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Apr · busiest ÷ quietest = 1.9×
Search terms
Top 4an to 1/8 Npt search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- 1/8 npt14K/yr
- 4an to 1/8 npt8K/yr
- 1/8 npt to 4an7K/yr
- 1/8 npt fitting5K/yr
- 1/8 brass fittings3K/yr
- 1/8npt to 4an3K/yr
Reviews and returns
What reviews say buyers love and hate about 4an to 1/8 Npt
We read the reviews and the return reasons for every product selling here.
“Cheap material”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
16 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common 4an to 1/8 Npt questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









