---
title: "3/8 Vacuum Hose — $51K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/3-8-vacuum-hose"
last_updated: "2026-08-09T12:10:54.745Z"
locale: en
meta:
description: "Niche score 46/100 · $51K/yr market · 27K searches/yr · $21.04 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $51K/yr market · 27K searches/yr · $21.04 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "3/8 Vacuum Hose — $51K/yr Amazon US Niche (2026) - Flapen"
---
# **3/8 vacuum hose**
**Skip it**
A small market ($51K/yr) — this niche doesn't clear our bar today.
Market size 13Growth 50Conversion 83Competition 25Returns 66Price range 84Avg price 90Brand share 40Review moat 64Quality gap 24
**Avg price**
**Great****$21.04**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$6.41–$68.88**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****9.0%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Good****2.4%**
return rate — above 5% kills the launch gate
**Review moat**
**Good****929.19**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+20.4%**
90-day search growth — must beat 0% to launch
**Brand share**
**Okay****81%**
top-5 brand share — brands hold most of the demand
**Competition**
**Bad****70%**
top-5 click share — a locked-up shelf
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$51K**
$51K/yr · 27K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, 3/8 vacuum hose is a $51K/yr Amazon United States market (27K searches/yr). The top 5 brands hold 81% of demand. Verdict: Skip it — 46/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **3/8 vacuum hose market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$63K–$84K**
- units × avg price
- **Conversion rate**
- **9.0%**
- **Avg BSR**
- **#598**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **88%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **41 months**
- **Avg seller age**
- **192 days**
## **Competition & brand share**
The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**12 **▲rising
**Sellers**
**36**
**Top-5 brand share**
**81%**
Top 20: 100%
**Top-5 click share**
**70%**
Top 20: 100%
**Open market**
**14%**
- Apalie29% - EVIL ENERGY24% - dojobkinb12% - Gephynm9% - Impesur8% - GELRIUNY4% - Open — no brand owns it (6 brands, 14%)
## **Demand**
Weekly Amazon search volume, last 11 weeks — +20.4% search growth over the last 90 days.
700500Apr '26May '26May '26May '26May '26May '26Jun '26Jun '26Jun '26Jun '26Jul '26
[**Open Trend **](https://flapen.com/research/us/automotive/3-8-vacuum-hose/trend)
## **Top 3/8 vacuum hose search terms**
- **3/8 vacuum hose**18K/yr+25.5%9.0% conv. - **3/8 vacuum hose automotive**6K/yr-17.3%12.1% conv. - **3/8 vacuum line**3K/yr+64.8%10.8% conv. [**All search terms **](https://flapen.com/research/us/automotive/3-8-vacuum-hose/search-terms)
## **Top 3/8 vacuum 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%$5K20%$10K30%$15K40%$20K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Apalie 3/8(10mm) ID 5FT High Performance Automotive Silicone Vacuum Tubing Hose line 130PSI for Engine**Apalie**$8.97**4.7★120 rev](https://www.amazon.com/dp/B0CMQYNM24) [2**EVIL ENERGY 3/8 Silicone Vacuum Tubing Hose Line 10FT 130PSI Max Pressure Black (10mm ID)**EVIL ENERGY**$21.75**4.8★799 rev](https://www.amazon.com/dp/B0B71DS828) [3**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) [4**Impesur 3/8 Silicone Vacuum hose 10FT Vacuum Hose Automotive Black (ID 10mm) 130PSI Max Pressure with 5 Hose Clamps**Impesur**$12.17**4.8★20 rev](https://www.amazon.com/dp/B0D5HQG2BH) [5**GEPHYNM Vacuum Hose Automotive 10 FT 3/8 Inch ID Vacuum Line 130PSI Max Pressure Vacuum Lines Automotive Silicone Hose**Gephynm**$12.67**4.7★561 rev](https://www.amazon.com/dp/B0CM1F9WXK)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Upgraded HV1S 3/8 Heavy Duty Charging Vacuum Hose 3/8 to 1/4 Fittings 5 Ft 800 PSI Working Pressure 4000 PSI Burst Pressure Compatible with Most Refrigeration and Air Conditioning Equipment**GELRIUNY**$39.25**48 rev1y ago](https://www.amazon.com/dp/B0DHZTSYHY) [**Upgraded 15660 3/8in Heavy Duty Charging Vacuum Hose 3/8 to 3/8 Fittings 5 FT 600 PSI Working Pressure 3000 PSI Burst Pressure Compatible with Most Refrigeration&Air Conditioning Equipment**GELRIUNY**$35.59**37 rev1y ago](https://www.amazon.com/dp/B0DDKPHRPL) [**ACROPIX 130PSI Max Pressure Silicone Vacuum Tubing Hose Automotive Vacuum Line High Temperature 4FT 3/8 10mm ID 2mm Thickness Black Silicone**ACROPIX**$6.41**26 rev1y ago](https://www.amazon.com/dp/B0DCP5F7ZS) [**2026 Upgrade HV1 3/8 Vacuum Hose 5 Ft Fittings: 3/8 x 3/8 Working Pressure: 800 (Psi) Burst Pressure: 4000 (Psi) Compatible with Most Refrigeration and Air Conditioning Equipment Black**Elyaspedy**$46.36**96 rev1y ago](https://www.amazon.com/dp/B0D9BHZ9QZ) [**Impesur 3/8 Silicone Vacuum hose 10FT Vacuum Hose Automotive Black (ID 10mm) 130PSI Max Pressure with 5 Hose Clamps**Impesur**$12.17**20 rev2y ago](https://www.amazon.com/dp/B0D5HQG2BH)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**2026 Upgrade HV1 3/8 Vacuum Hose 5 Ft Fittings: 3/8 x 3/8 Working Pressure: 800 (Psi) Burst Pressure: 4000 (Psi) Compatible with Most Refrigeration and Air Conditioning Equipment Black**Elyaspedy**$46.36**4.5★**▲ 96%**](https://www.amazon.com/dp/B0D9BHZ9QZ) [**Yellow Jacket 15660 Pulls Bc-60 Straight Heavy Duty Charging Vacuum Hose 3/8 Diameter**Yellow Jacket**$68.88**4.7★**▲ 84%**](https://www.amazon.com/dp/B009PAQLM2) [**Upgraded HV1S 3/8 Heavy Duty Charging Vacuum Hose 3/8 to 1/4 Fittings 5 Ft 800 PSI Working Pressure 4000 PSI Burst Pressure Compatible with Most Refrigeration and Air Conditioning Equipment**GELRIUNY**$39.25**4.6★**▲ 83%**](https://www.amazon.com/dp/B0DHZTSYHY) [**ACROPIX 130PSI Max Pressure Silicone Vacuum Tubing Hose Automotive Vacuum Line High Temperature 4FT 3/8 10mm ID 2mm Thickness Black Silicone**ACROPIX**$6.41**4.0★**▲ 53%**](https://www.amazon.com/dp/B0DCP5F7ZS) [**Apalie 3/8(10mm) ID 5FT High Performance Automotive Silicone Vacuum Tubing Hose line 130PSI for Engine**Apalie**$8.97**4.7★**▲ 42%**](https://www.amazon.com/dp/B0CMQYNM24)
**~~View all trending →~~**
## **What buyers say about 3/8 vacuum hose**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**27%
*“High quality hose”*
**Advertised Vs Actual Product**17%
*“As advertised”*
**Value For Money**10%
*“Good for the money”*
**Fuel Efficiency**6%
*“good cheap fuel line”*
**Durability**5%
*“more durable”*
**Efficiency**5%
*“It works great”*
**Size-Overall**4%
*“perfect size”*
**Ease Of Use**3%
*“easy to use”*
**Leak-Proof**3%
*“Initial leak testing with the system was fine”*
**Weight Heavy**2%
*“Very happy great price Heavy Duty”*
### **What buyers complain about **
**Quality-Overall**12%
*“Bad quality”*
**Leak-Proof**11%
*“about 6 months leaked again”*
**Size-Overall**9%
*“it was 3 short of 10'”*
**Durability**8%
*“It broke down”*
**Material Quality**7%
*“Cheap material”*
**Suction**5%
*“I cannot imagine it holding up to any type of solvent/petroleum vapors the way a vacuum hose needs too”*
**Thickness**5%
*“Too thick”*
**Pressure**5%
*“Everything I had burst was at 55psi aka stock LS fuel rail pressure”*
**Connectivity-Overall**3%
*“Explosively disconnected - Dangerously manufactured”*
**Advertised Vs Actual Product**3%
*“4 ft shorter than advertised”*
### **Top return reasons **
**Size-Overall**72%
**Advertised Vs Actual Product**5%
**Compatibility-Overall**4%
**Material Quality**2%
**Quality-Overall**2%
**Value For Money**2%
**Functionality-Overall**2%
**Defective Material/Parts**2%
**Width**1%
**Pressure**1%
## **Common questions**
- **Is 3/8 vacuum hose profitable to sell on Amazon United States?**
- The niche generates $51K/yr across 16 tracked products. 90-day search growth is +20.4%. Flapen's verdict: Skip it (46/100).
- **How competitive is the 3/8 vacuum hose niche?**
- 12 brands and 36 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 vacuum hose?**
- Top complaints mined from reviews: Quality-Overall, Leak-Proof, Size-Overall. The return rate is 2.4%.
- **What does it cost to enter the 3/8 vacuum hose niche?**
- Listings span $6.41–$68.88; the average listing price is $21.04 (sweet spot $15–$100). The average incumbent carries 929 reviews — the moat a new listing must climb.
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