---
title: "3/8 Hose — $89K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/3-8-hose"
last_updated: "2026-08-09T13:31:42.549Z"
locale: en
meta:
description: "Niche score 48/100 · $89K/yr market · 70K searches/yr · $14.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $89K/yr market · 70K searches/yr · $14.64 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "3/8 Hose — $89K/yr Amazon US Niche (2026) - Flapen"
---
# **3/8 hose**
**Skip it**
A small market ($89K/yr) — this niche doesn't clear our bar today.
Market size 22Growth 62Conversion 82Competition 25Returns 75Price range 77Avg price 72Brand share 39Review moat 35Quality gap 24
**Conversion**
**Great****8.7%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****$7.15–$42.87**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Great****2.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Good****$14.64**
avg listing price — sweet spot $15–$100
**Growth**
**Good****+38.7%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****81%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Okay****2,974.95**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****70%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$89K**
$89K/yr · 70K searches
According to Flapen's Amazon United States niche tracking, 3/8 hose is a $89K/yr Amazon United States market (70K searches/yr). The top 5 brands hold 81% of demand. Demand peaks in May–Jun. Verdict: Skip it — 48/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **3/8 hose market data**
- **Units sold / yr**
- **6K–8K**
- avg 250–500/product
- **Revenue / yr**
- **$88K–$117K**
- units × avg price
- **Conversion rate**
- **8.7%**
- **Avg BSR**
- **#133**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **84%**
- **Out of stock**
- **1.5%**
- **Avg brand age**
- **47 months**
- **Avg seller age**
- **179 days**
## **Competition & brand share**
The top 5 products take 70% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **▲rising
**Sellers**
**33**
**Top-5 brand share**
**81%**
Top 20: 100%
**Top-5 click share**
**70%**
Top 20: 100%
**Open market**
**13%**
- Eastman22% - dojobkinb21% - Eunice14% - EVIL ENERGY13% - Eastrans11% - Storystore6% - Open — no brand owns it (7 brands, 13%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +38.7% search growth over the last 90 days.
2K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: May, Jun · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/us/automotive/3-8-hose/trend)
## **Top 3/8 hose search terms**
- **3/8 hose**48K/yr+42.9%7.4% conv. - **3/8 rubber hose**10K/yr+31.2%7.6% conv. - **3/8 id hose**6K/yr+26.9%8.8% conv. - **3/8 pcv hose**3K/yr+16.1%9.5% conv. - **3/8 inch hose**3K/yr+54.8%7.8% conv. [**All search terms **](https://flapen.com/research/us/automotive/3-8-hose/search-terms)
## **Top 3/8 hose 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%10%$9K20%$18K30%$27K40%$36K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 19 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**3/8 Inch (10mm) ID Fuel Line Hose 10FT NBR Rubber Push Lock Hose High Pressure 300PSI for Automotive Fuel Systems Engines**dojobkinb**$10.42**4.6★5,527 rev](https://www.amazon.com/dp/B09KRVYLMS) [2**Eastman 3/8 Inch ID (1/2 Inch OD) PVC Clear Vinyl Tubing 10 Foot Length 98620**Eastman**$7.74**4.6★5,392 rev](https://www.amazon.com/dp/B07NQSNBTG) [3**EVIL ENERGY 3/8 Fuel Hose Line Push Lock NBR Rubber SAE 30R7 10FT 300PSI**EVIL ENERGY**$14.89**4.8★2,325 rev](https://www.amazon.com/dp/B097HD94NH) [4**3/8 Inch (10mm) ID Fuel Line Hose 10 FT 300PSI Push Lock NBR Rubber Hose for Automotive**Eunice**$8.41**4.6★1,837 rev](https://www.amazon.com/dp/B09GM2X3TH) [5**3/8 Inch ID NBR Rubber Hose 10 Feet Fuel Hose Line Transfer Hose for Small Engine Black**Storystore**$9.54**4.5★413 rev](https://www.amazon.com/dp/B0B7QBS1V9)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**3/8 Inch (10mm) ID Fuel Line Hose 10FT NBR Rubber Push Lock Tubing High Pressure 300PSI for Automotive Fuel Systems Engines and Gas Transmission Line**TUBPRO**$9.84**41 rev7mo ago](https://www.amazon.com/dp/B0G5YMNTSH) [**ZONBANG 3/8 Fuel Line NBR Rubber 3/8 Fuel Hose Nylon Braided Fuel Line Hose for Automotive Vehicles(5FT)**ZONBANG**$7.15**324 rev1y ago](https://www.amazon.com/dp/B0DN6G25QR) [**3/8 Inch (10mm) ID Fuel Line Hose 5 FT 300PSI Push Lock NBR Rubber Hose for Automotive**Eunice**$7.62**1,837 rev2y ago](https://www.amazon.com/dp/B0CPPSX42P) [**HOUSUN Fuel Line 3/8 Inch ID Fuel Hose 10FT J30R7 Fuel Line Hose NBR with 10 Clamps.**HOUSUN**$11.79**1,790 rev2y ago](https://www.amazon.com/dp/B0CNCN5P1N) [**DERPIPE Soft Braided PVC Tubing - 3/8 x 5/8 OD High Pressure Clear Flexible PVC Tube Reinforced Vinyl Hose for Water Oil with 2pcs Hose Clamps (10Ft)**DERPIPE**$14.62**652 rev3y ago](https://www.amazon.com/dp/B0BFD6RK6G)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**3/8 Inch (10mm) ID Fuel Line Hose 10FT NBR Rubber Push Lock Tubing High Pressure 300PSI for Automotive Fuel Systems Engines and Gas Transmission Line**TUBPRO**$9.84**4.4★**▲ 209%**](https://www.amazon.com/dp/B0G5YMNTSH) [**Eastman 3/8 Inch ID (1/2 Inch OD) PVC Clear Vinyl Tubing 20 Foot Length 98566**Eastman**$12.21**4.6★**▲ 127%**](https://www.amazon.com/dp/B08SNZLZ9P) [**3/8 Inch (10mm) ID Fuel Line Hose 5 FT 300PSI Push Lock NBR Rubber Hose for Automotive**Eunice**$7.62**4.6★**▲ 89%**](https://www.amazon.com/dp/B0CPPSX42P) [**3/8 ID x 10 Ft High Pressure Braided Clear PVC Vinyl Tubing Flexible Vinyl Tube Heavy Duty Reinforced Hose Tubing BPA Free and Non Toxic**Eastrans**$15.00**4.7★**▲ 82%**](https://www.amazon.com/dp/B07MTYMW13) [**3/8 ID x 50 Ft High Pressure Braided Clear PVC Vinyl Tubing Flexible Vinyl Tube Heavy Duty Reinforced Hose Tubing BPA Free and Non Toxic**Eastrans**$32.02**4.7★**▲ 65%**](https://www.amazon.com/dp/B07W974677)
**~~View all trending →~~**
## **What buyers say about 3/8 hose**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**32%
*“Quality hose and price is great”*
**Value For Money**15%
*“Worth the money”*
**Advertised Vs Actual Product**9%
*“Exactly as advertised”*
**Efficiency**7%
*“Worked to fix my problem”*
**Size-Overall**7%
*“It fits snugly”*
**Fuel Efficiency**5%
*“Very good gas hose”*
**Pressure**3%
*“It has a braided layer to handle the pressure without issues”*
**Durability**2%
*“more durable”*
**Weight Heavy**2%
*“Extra heavy tubing”*
**Flexibility**2%
*“Flexible”*
### **What buyers complain about **
**Leak-Proof**14%
*“And leaked the next day”*
**Size-Overall**12%
*“it was 3 short of 10'”*
**Quality-Overall**12%
*“Poor quality hose”*
**Durability**7%
*“It broke down”*
**Smell**6%
*“This tubing has a horrible rubber smell”*
**Material Quality**5%
*“Cheap material”*
**Pressure**4%
*“Everything I had burst was at 55psi aka stock LS fuel rail pressure”*
**Assembly/Installation**4%
*“Don't install this”*
**Thickness**3%
*“thick feel of the EE hose”*
**Advertised Vs Actual Product**3%
*“4 ft shorter than advertised”*
### **Top return reasons **
**Size-Overall**75%
**Compatibility-Overall**4%
**Advertised Vs Actual Product**4%
**Value For Money**2%
**Material Quality**2%
**Quality-Overall**1%
**Pressure**1%
**Defective Material/Parts**1%
**Functionality-Overall**1%
**Certifications**1%
## **Common questions**
- **Is 3/8 hose profitable to sell on Amazon United States?**
- The niche generates $89K/yr across 19 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +38.7%. Flapen's verdict: Skip it (48/100).
- **How competitive is the 3/8 hose niche?**
- 13 brands and 33 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 81% of demand.
- **What do buyers complain about in 3/8 hose?**
- Top complaints mined from reviews: Leak-Proof, Size-Overall, Quality-Overall. The return rate is 2.0%.
- **When does demand for 3/8 hose peak?**
- Demand peaks in May–Jun; the busiest month runs 2.0× the quietest.
- **What does it cost to enter the 3/8 hose niche?**
- Listings span $7.15–$42.87; the average listing price is $14.64 (sweet spot $15–$100). The average incumbent carries 2,975 reviews — the moat a new listing must climb.
## **Related niches in Automotive**
- 72 [**brake bleeder kit**](https://flapen.com/research/us/automotive/brake-bleeder-kit)$2.2M/yr+8.2%**Launch it**- 72 [**gas can pump**](https://flapen.com/research/us/automotive/gas-can-pump)$1.7M/yr+20.1%**Launch it**- 72 [**dewalt hedge trimmer**](https://flapen.com/research/us/automotive/dewalt-hedge-trimmer)$1.6M/yr+158.2%**Launch it**- 72 [**iron eraser**](https://flapen.com/research/us/automotive/iron-eraser)$107K/yr>1,000%**Worth a look**- 72 [**marine fuel line**](https://flapen.com/research/us/automotive/marine-fuel-line)$198K/yr+104.3%**Worth a look**- 72 [**garden hose filter**](https://flapen.com/research/us/automotive/garden-hose-filter)$729K/yr+110.7%**Worth a look**[**All Automotive niches **](https://flapen.com/research/us/automotive)