nema 10-30 extension cord
Skip itHigh returns (9.1%) — this niche doesn't clear our bar today.
Avg price
Great$60.85avg listing price — sweet spot $15–$100
Review moat
Great299.67avg incumbent reviews — the moat a new listing must climb
Brand share
Good70%top-5 brand share — brands hold most of the demand
Conversion
Good5.0%search→purchase rate — share of searches ending in a sale
Competition
Good53%top-5 click share — leaders hold, buyers still browse
Growth
Okay+14.7%90-day search growth — must beat 0% to launch
Price range
Okay$25.31–$268.42cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Market size
Bad$49K$49K/yr · 16K searches
Returns
Bad9.1%return rate — above 5% kills the launch gate
According to Flapen's Amazon United States niche tracking, nema 10-30 extension cord is a $49K/yr Amazon United States market (16K searches/yr). The top 5 brands hold 70% of demand. Verdict: Skip it — 41/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
nema 10-30 extension cord market data
- Units sold / yr
- 750–1K
- avg 0–100/product
- Revenue / yr
- $46K–$61K
- units × avg price
- Conversion rate
- 5.0%
- Avg BSR
- #652
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 96%
- Out of stock
- 23.9%
- Avg brand age
- 55 months
- Avg seller age
- 208 days
Competition & brand share
The top 5 products take 53% of clicks — established leaders, but buyers still shop beyond them.Brands
14 falling
Sellers
20
Top-5 brand share
70%
Top 20: 100%
Top-5 click share
53%
Top 20: 97%
Open market
23%
- islewire21%
- CircleCord17%
- PlugSaf14%
- Deeklify10%
- ANNQUAN8%
- RVMATE8%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +14.7% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top nema 10-30 extension cord 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
islewire 30-Amp 3-Prong Dryer EV Extension Cord 50 Feet NEMA 10-30P to 10-30R 125V/250V Heavy Duty STW 10 Gauge Waterproof Perfect for Level 2 EV Charging and Dryer Power Extension ETL Listed
islewire$89.774.7★63 rev
PlugSaf 30 AMP 3 Prong Dryer Cord 25 FT Outdoor Black 10/3 Gauge Dryer Extension Cord Heavy Duty NEMA 10-30P to 10-30R for Dryer Cord 3 Prong 125V/250V STW 10 Gauge ETL Listed
PlugSaf$45.624.8★176 rev
10FT 3 Prong Dryer Extension Cord 30 Amp NEMA 10-30P to 10-30R EV Extension Cord for Dryer Power Extension and Level 2 EV Charging 125V/250V 10 AWG STW ETL Listed (Black)
ANNQUAN$27.214.8★651 rev
Deeklify 25 FT 3 Prong Dryer Extension Cord Outdoor Black 30 AMP 10/3 Gauge Heavy Duty NEMA 10-30P to 10-30R Waterproof SRDT Jacket ETL Listed for 3 Prong Dryers
Deeklify$45.105.0★9 rev
CircleCord 3 Prong 25FT Dryer/EV Extension Cord 30 Amp NEMA 10-30P/R Suit for Level 2 EV Charging and 3 Prong Dryer 125V/250V STW 10 Gauge
CircleCord$55.424.6★648 rev
Newest
by launch dateDeeklify 25 FT 3 Prong Dryer Extension Cord Outdoor Black 30 AMP 10/3 Gauge Heavy Duty NEMA 10-30P to 10-30R Waterproof SRDT Jacket ETL Listed for 3 Prong Dryers
Deeklify$45.109 rev
Deeklify 10 FT 3 Prong Dryer Extension Cord Outdoor Black 30 AMP 10/3 Gauge Heavy Duty NEMA 10-30P to 10-30R Waterproof SRDT Jacket ETL Listed for 3 Prong Dryers
Deeklify$25.31136 rev
Level 2 EV Charger with NEMA 10-30 Plug 24Amp 240V 25FT Extension Cord Adjustable Current (10-24A) Portable Home Mobile Dryer EV Charger for J1772 Electric Vehicles Fits 3-Prong Dryer Outlet
SEGUMA$268.4248 rev
VEVOR 50 FT 30 Amp Dryer Extension Cord 3-Prong NEMA 10-30P to 10-30R 10AWG STW Pure Copper 125/250V 7500W Heavy Duty Power Cable for EV Charging Laundry Room Home Garage ETL Listed
VEVOR$70.7431 rev
Kanayu 6.6 FT 3 Prong Dryer/EV Extension Cord 30 Amp NEMA 10-30P to 10-30R for 3 Prong Older Dryer and Level 2 EV Charging Power Flexible Cable STW 10 Gauge Cord with Grip Handle ETL Listed
Kanayu$37.73133 rev
Trending
90-day click momentumDeeklify 25 FT 3 Prong Dryer Extension Cord Outdoor Black 30 AMP 10/3 Gauge Heavy Duty NEMA 10-30P to 10-30R Waterproof SRDT Jacket ETL Listed for 3 Prong Dryers
Deeklify$45.105.0★
Deeklify 10 FT 3 Prong Dryer Extension Cord Outdoor Black 30 AMP 10/3 Gauge Heavy Duty NEMA 10-30P to 10-30R Waterproof SRDT Jacket ETL Listed for 3 Prong Dryers
Deeklify$25.314.9★
RVMATE 3 Prong Dryer Extension Cord 10 Feet 30 Amp NEMA 10-30P to 10-30R 125V/250V Waterproof PVC Jacket Perfect for Dryer Power Extension ETL Listed
RVMATE$29.334.8★
CircleCord 3 Prong 15FT Dryer/EV Extension Cord 30 Amp NEMA 10-30P/R Suit for Level 2 EV Charging and 3 Prong Dryer 125V/250V STW 10 Gauge
CircleCord$38.834.6★
GEARit 3 Prong Dryer Cord 10 Ft Dryer Extension Cord NEMA 10-30P to 10-30R 30 Amp 220V 240V Heavy Duty 10/3 AWG STW Copper Cable 3 Prong Dryer Extension Cord for Older Outlets
GEARit$34.994.7★
What buyers say about nema 10-30 extension cord
What buyers praise and complain about, mined from review topics.What buyers love
“It's as advertised”
“build well it will last a long time”
“Great for EV chargers”
“Very durable”
“Budget friendly”
“Heavy duty”
“Strong and Easy to Use”
“Strong and Easy to Use”
“Good quality material”
“no over heating built fantastic”
What buyers complain about
“It was to short”
“exhibited an overall low build quality”
“Given the safety risk of a faulty power connection”
“the cord wouldnt reach”
“we're spread thin after the two car purchases”
“soon it began charging at 16 Amps”
“it seemed to overheat”
Top return reasons
Common questions
- Is nema 10-30 extension cord profitable to sell on Amazon United States?
- The niche generates $49K/yr across 24 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is +14.7%. Flapen's verdict: Skip it (41/100).
- How competitive is the nema 10-30 extension cord niche?
- 14 brands and 20 sellers compete. The top 5 products take 53% of clicks and top 5 brands hold 70% of demand.
- What do buyers complain about in nema 10-30 extension cord?
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Connectivity-Overall. The return rate is 9.1% — above our launch gate.
- When does demand for nema 10-30 extension cord peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the nema 10-30 extension cord niche?
- Listings span $25.31–$268.42; the average listing price is $60.85 (sweet spot $15–$100). The average incumbent carries 300 reviews — the moat a new listing must climb.