---
title: "6/3 Romex 75 Ft — $116K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/6-3-romex-75-ft"
last_updated: "2026-08-08T09:36:56.873Z"
locale: en
meta:
description: "Niche score 29/100 · $116K/yr market · 15K searches/yr · $259.18 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 29/100 · $116K/yr market · 15K searches/yr · $259.18 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "6/3 Romex 75 Ft — $116K/yr Amazon US Niche (2026) - Flapen"
---
# **6/3 romex 75 ft**
**Skip it**
Prices mostly outside the sweet spot ($91.90–$390.46) — this niche doesn't clear our bar today.
Market size 27Growth 23Conversion 37Competition 21Returns 49Price range 3Avg price 37Brand share 13Review moat 91Quality gap 23
**Review moat**
**Great****187.67**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Okay****3.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Okay****2.9%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Okay****$259.18**
avg listing price — sweet spot $15–$100
**Market size**
**Okay****$116K**
$116K/yr · 15K searches
**Growth**
**Bad****-4.9%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****75%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****95%**
top-5 brand share — brand-locked demand
**Price range**
**Bad****$91.90–$390.46**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, 6/3 romex 75 ft is a $116K/yr Amazon United States market (15K searches/yr). The top 5 brands hold 95% of demand. Demand peaks in Oct. Verdict: Skip it — 29/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **6/3 romex 75 ft market data**
- **Units sold / yr**
- **500–750**
- avg 0–100/product
- **Revenue / yr**
- **$130K–$194K**
- units × avg price
- **Conversion rate**
- **2.9%**
- **Avg BSR**
- **#1,113**
- **Page quality**
- **0%**
- **Prime**
- **67%**
- **Sponsored**
- **87%**
- **Out of stock**
- **2.1%**
- **Avg brand age**
- **53 months**
- **Avg seller age**
- **145 days**
## **Competition & brand share**
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**8 **▲rising
**Sellers**
**33**
**Top-5 brand share**
**95%**
Top 20: 100%
**Top-5 click share**
**75%**
Top 20: 100%
**Open market**
**3%**
- Southwire37% - XMK25% - energeaster15% - wirenco10% - ARIZONA ELECTRICAL SOLUTIONS7% - MOOKEERF2% - Open — no brand owns it (2 brands, 3%)
## **Demand & seasonality**
Weekly Amazon search volume, last 56 weeks — -4.9% search growth over the last 90 days.
450350Prime Day '25Spike '25 seasonJulAugSepOctNovDecJanFebMarAprMayJunJul
Peak months: Oct · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/6-3-romex-75-ft/trend)
## **Top 6/3 romex 75 ft 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%$12K20%$23K30%$35K40%$46K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 15 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**NM-B 6/3 Wire with Ground 75ft 6/3 6 Gauge NM-B Wire Copper 6 AWG 3 Conductor with Ground Nonmetallic Sheathed NMB Cable 6-3 Residential Indoor Wiring for Branch Circuit Switches Outlets Other Loads**XMK**$297.03**4.8★257 rev](https://www.amazon.com/dp/B0F21JN76L) [2**Southwire 63950002 125ft. 6 Gauge 3 Conductor Nonmetallic Sheathed Type NM-B Cable Black**Southwire**$386.41**4.7★834 rev](https://www.amazon.com/dp/B001D4C2OO) [3**Southwire 63950007 75 ft. 6/3 NM-B Stranded Indoor Residential Electrical Wire - Black**Southwire**$320.25**4.7★834 rev](https://www.amazon.com/dp/B00J9PZ8QI) [4**Solid Indoor 6/3 Type NM-B Pure Copper Cable 125FT Black 6 AWG 3 Conductors with Ground Wire**energeaster**$390.46**4.5★16 rev](https://www.amazon.com/dp/B0DZCCR7NH) [5**Solid Indoor 6/3 Type NM-B Pure Copper Cable 75FT Black 6 AWG 3 Conductors with Ground Wire**energeaster**$295.33**4.5★16 rev](https://www.amazon.com/dp/B0G4141YB3)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Solid Indoor 6/3 Type NM-B Pure Copper Cable 125FT Black 6 AWG 3 Conductors with Ground Wire**energeaster**$390.46**16 rev8mo ago](https://www.amazon.com/dp/B0DZCCR7NH) [**Solid Indoor 6/3 Type NM-B Pure Copper Cable 75FT Black 6 AWG 3 Conductors with Ground Wire**energeaster**$295.33**16 rev8mo ago](https://www.amazon.com/dp/B0G4141YB3) [**6/3 Wire with Ground - 75FT NM-B 6 Gauge Non-Metallic Sheathed Cable 100% Pure Copper 6 AWG 3 Conductor Residential Indoor Wire for Outlets Switches Other Loads and Lighting Wiring Projects etc.**MOOKEERF**$310.48**24 rev1y ago](https://www.amazon.com/dp/B0FFT2PD23) [**NM-B 6/3 Wire with Ground 75ft 6/3 6 Gauge NM-B Wire Copper 6 AWG 3 Conductor with Ground Nonmetallic Sheathed NMB Cable 6-3 Residential Indoor Wiring for Branch Circuit Switches Outlets Other Loads**XMK**$297.03**257 rev1y ago](https://www.amazon.com/dp/B0F21JN76L) [**VN Infinite quality 6/3 NM-B Residential Indoor Wire - Non-Metallic - Sheathed Cable Black (75 Ft)**VN Infinite quality**$307.75**7 rev2y ago](https://www.amazon.com/dp/B0D82N16S3)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Solid Indoor 6/3 Type NM-B Pure Copper Cable 125FT Black 6 AWG 3 Conductors with Ground Wire**energeaster**$390.46**4.5★**▲ 273%**](https://www.amazon.com/dp/B0DZCCR7NH) [**Solid Indoor 6/3 Type NM-B Pure Copper Cable 75FT Black 6 AWG 3 Conductors with Ground Wire**energeaster**$295.33**4.5★**▲ 272%**](https://www.amazon.com/dp/B0G4141YB3) [**6/3 Wire with Ground - 75FT NM-B 6 Gauge Non-Metallic Sheathed Cable 100% Pure Copper 6 AWG 3 Conductor Residential Indoor Wire for Outlets Switches Other Loads and Lighting Wiring Projects etc.**MOOKEERF**$310.48**4.6★**▲ 71%**](https://www.amazon.com/dp/B0FFT2PD23) [**NM-B 6/3 Wire with Ground 75ft 6/3 6 Gauge NM-B Wire Copper 6 AWG 3 Conductor with Ground Nonmetallic Sheathed NMB Cable 6-3 Residential Indoor Wiring for Branch Circuit Switches Outlets Other Loads**XMK**$297.03**4.8★**▲ 50%**](https://www.amazon.com/dp/B0F21JN76L) [**Wirenco 6/3 NM-B Non-Metallic Sheathed Cable Residential Indoor Wire Used for Wiring Swiches Outlets and Other Loads with Dry Applications (30Ft Cut)**wirenco**$133.68**4.6★**▲ 20%**](https://www.amazon.com/dp/B0D1HBGJRS)
**~~View all trending →~~**
## **What buyers say about 6/3 romex 75 ft**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**38%
*“it was well worth it”*
**Quality-Overall**28%
*“I was impressed with the quality of the wire”*
**Advertised Vs Actual Product**16%
*“Exactly as expected”*
**Locally Manufactured**4%
*“product made in America”*
**Flexibility**2%
*“Its flexible enough”*
**Efficiency**2%
*“Works well for me”*
**Strength**2%
*“Good solid cable”*
**Motor Power**2%
*“As described and Pictured other than Ground Wire plenty of Power to Carry the Load as Needed”*
**Connectivity-Overall**1%
*“easy to hook up to everything”*
### **What buyers complain about **
**Advertised Vs Actual Product**30%
*“All pictures show solid wire / I received stranded wire”*
**Value For Money**20%
*“A very expensive item should be delivered properly near the door not close to the sidewalk”*
**Stiffness**10%
*“Cable is very stiff as you would expect”*
**Material Quality**10%
*“It not solid”*
**Weight Heavy**5%
*“It's very heavy though”*
### **Top return reasons **
**Advertised Vs Actual Product**21%
**Size-Overall**19%
**Value For Money**12%
**Functionality-Overall**9%
**Defective Material/Parts**7%
**Product Condition**7%
**Thin**4%
**Compatibility-Overall**4%
**Certifications**3%
**Measurement/Reading Accuracy**3%
## **Common questions**
- **Is 6/3 romex 75 ft profitable to sell on Amazon United States?**
- The niche generates $116K/yr across 15 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -4.9%. Flapen's verdict: Skip it (29/100).
- **How competitive is the 6/3 romex 75 ft niche?**
- 8 brands and 33 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 95% of demand.
- **What do buyers complain about in 6/3 romex 75 ft?**
- Top complaints mined from reviews: Advertised Vs Actual Product, Value For Money, Stiffness. The return rate is 3.1%.
- **When does demand for 6/3 romex 75 ft peak?**
- Demand peaks in Oct; the busiest month runs 1.6× the quietest.
- **What does it cost to enter the 6/3 romex 75 ft niche?**
- Listings span $91.90–$390.46; the average listing price is $259.18 (sweet spot $15–$100). The average incumbent carries 188 reviews — the moat a new listing must climb.
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