10/3 romex
Worth a lookShows a thin review moat (116 avg reviews), but soft demand (-15.0% this quarter) keeps it on the watch list.
Review moat
Great116.4avg incumbent reviews — the moat a new listing must climb
Market size
Great$1.1M$1.1M/yr · 217K searches
Avg price
Great$93.16avg listing price — sweet spot $15–$100
Competition
Good47%top-5 click share — leaders hold, buyers still browse
Conversion
Good5.3%search→purchase rate — share of searches ending in a sale
Returns
Good2.8%return rate — above 5% kills the launch gate
Brand share
Okay85%top-5 brand share — brands hold most of the demand
Price range
Bad$25.29–$354.11cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Growth
Bad-15.0%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, 10/3 romex is a $1.1M/yr Amazon United States market (217K searches/yr). The top 5 brands hold 85% of demand. Verdict: Worth a look — 50/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
10/3 romex market data
- Units sold / yr
- 8K–10K
- avg 100–250/product
- Revenue / yr
- $745K–$932K
- units × avg price
- Conversion rate
- 5.3%
- Avg BSR
- #338
- Page quality
- 0%
- Prime
- 90%
- Sponsored
- 83%
- Out of stock
- 1.0%
- Avg brand age
- 55 months
- Avg seller age
- 147 days
Competition & brand share
The top 5 products take 47% of clicks — established leaders, but buyers still shop beyond them.Brands
10 falling
Sellers
38
Top-5 brand share
85%
Top 20: 100%
Top-5 click share
47%
Top 20: 88%
Open market
10%
- energeaster35%
- Southwire21%
- wirenco11%
- XMK11%
- VN Infinite quality7%
- CLLOMAGY5%
- Open — no brand owns it (4 brands, 10%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -15.0% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Top 10/3 romex search terms
- 10/3 romex67K/yr
- 10/3 wire45K/yr
- 10-3 romex16K/yr
- 10/3 wire with ground15K/yr
- 10-3 wire13K/yr
- 10/3 romex wire7K/yr
- 10/3 romex 50 ft10K/yr
- 10/37K/yr
- 10 3 wire9K/yr
- 10/3 romex 100 ft6K/yr
Top 10/3 romex 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Solid Indoor 10/3 Type NM-B Pure Copper Cable 50FT Pink 10 AWG 3 Conductors with Ground Wire
energeaster$93.824.9★75 rev
Solid Indoor 10/3 Type NM-B Pure Copper Cable 100FT Pink 10 AWG 3 Conductors with Ground Wire
energeaster$171.744.9★75 rev
Solid Indoor 10/3 Type NM-B Pure Copper Cable 25FT Pink 10 AWG 3 Conductors with Ground Wire
energeaster$50.454.9★75 rev
Wirenco 10/3 NM-B Non-Mettalic Sheathed Cable Residential Indoor Wire Equivalent to (50Ft Cut)
wirenco$87.344.6★163 rev
Southwire Romex SIMpull Electrical Wire 10 Gauge 3 Conductor 100Ft NMB/G Wire Pink 63948526
Southwire$172.404.7★309 rev
Newest
by launch date
CIRENKO 10/3 NM-B Cable 50 FT UL Listed Residential Indoor Electrical Wire 3 Conductors with Ground Solid Bare Copper 600V
CIRENKO$88.601 rev
10ft NM-B 10/3 Wire with Ground 10/3 Electrical Wire 10 Gauge 3 Conductors with Ground Non-Mettalic Sheathed NM-B Cable Residential Solid Indoor 10 AWG Copper Wiring for Branch Circuit Switch Outlet
XMK$29.4643 rev
NM-B 10/3 Wire with Ground 50ft 10 AWG Copper Wire 10 Gauge 3 Conductor with Ground Non-Metallic Sheathed NM-B Cable 10/3 Solid Indoor Residential Wiring for Branch Circuit Switches Outlets Other Load
XMK$97.7143 rev
15ft NM-B 10/3 Wire with Ground 10/3 NM-B Copper Electrical Wire 10 Gauge 3 Conductors with Ground Non-Mettalic Sheathed Cable Residential Solid Indoor 10 AWG Copper Wiring for Circuit Switch Outlet
XMK$39.1243 rev
NM-B 10/3 Wire with Ground 25ft 10 Gauge 3 Conductor Electrical Wire 10 AWG Copper Non-Metallic Sheathed NM-B Cable 10/3 Solid Indoor Residential Wiring for Branch Circuit Switches Outlets Other Load
XMK$53.9543 rev
Trending
90-day click momentumCIRENKO 10/3 NM-B Cable 50 FT UL Listed Residential Indoor Electrical Wire 3 Conductors with Ground Solid Bare Copper 600V
CIRENKO$88.605.0★
Solid Indoor 10/3 Type NM-B Pure Copper Cable 50FT Pink 10 AWG 3 Conductors with Ground Wire
energeaster$93.824.9★
10ft NM-B 10/3 Wire with Ground 10/3 Electrical Wire 10 Gauge 3 Conductors with Ground Non-Mettalic Sheathed NM-B Cable Residential Solid Indoor 10 AWG Copper Wiring for Branch Circuit Switch Outlet
XMK$29.464.5★
15ft NM-B 10/3 Wire with Ground 10/3 NM-B Copper Electrical Wire 10 Gauge 3 Conductors with Ground Non-Mettalic Sheathed Cable Residential Solid Indoor 10 AWG Copper Wiring for Circuit Switch Outlet
XMK$39.124.5★
Solid Indoor 10/3 Type NM-B Pure Copper Cable 25FT Pink 10 AWG 3 Conductors with Ground Wire
energeaster$50.454.9★
What buyers say about 10/3 romex
What buyers praise and complain about, mined from review topics.What buyers love
“Great value”
“Good quality”
“Works as advertised”
“I really like the pink jacket”
“Good flexibility for routing”
“Helped us put in a second water heater”
“It works well”
“Worked great for 2nd dryer install”
“Excellent quality 10-3 NM-B cable and UL listed”
“should be durable”
What buyers complain about
“Info about product incorrect”
“expensive so i decided to get this one this time”
“It seems much stiffer than normal”
“routing through knockouts definitely took longer due to rigidity”
“LOL Not that color matters at all”
“Which makes me question the ridiculous mark up they are charging”
“Its hard to work with”
“not as durable as other soow wire Ive had in the past which was a similar outer coating”
“thick”
“10 three is pretty heavy”
Top return reasons
Common questions
- Is 10/3 romex profitable to sell on Amazon United States?
- The niche generates $1.1M/yr across 30 tracked products. 7 of 12 products launched in the last 360 days are still selling. 90-day search growth is -15.0%. Flapen's verdict: Worth a look (50/100).
- How competitive is the 10/3 romex niche?
- 10 brands and 38 sellers compete. The top 5 products take 47% of clicks and top 5 brands hold 85% of demand.
- What do buyers complain about in 10/3 romex?
- Top complaints mined from reviews: Advertised Vs Actual Product, Value For Money, Strength. The return rate is 2.8%.
- When does demand for 10/3 romex peak?
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- What does it cost to enter the 10/3 romex niche?
- Listings span $25.29–$354.11; the average listing price is $93.16 (sweet spot $15–$100). The average incumbent carries 116 reviews — the moat a new listing must climb.