---
title: "Nema 10-30 Extension Cord — $49K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/nema-10-30-extension-cord"
last_updated: "2026-08-08T23:00:04.763Z"
locale: en
meta:
description: "Niche score 41/100 · $49K/yr market · 16K searches/yr · $60.85 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 41/100 · $49K/yr market · 16K searches/yr · $60.85 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Nema 10-30 Extension Cord — $49K/yr Amazon US Niche (2026) - Flapen"
---
# **nema 10-30 extension cord**
**Skip it**
High returns (9.1%) — this niche doesn't clear our bar today.
Market size 12Growth 43Conversion 58Competition 54Returns 10Price range 31Avg price 89Brand share 59Review moat 85Quality gap 18
**Avg price**
**Great****$60.85**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****299.67**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Good****70%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Good****5.0%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Good****53%**
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–$268.42**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$49K**
$49K/yr · 16K searches
**Returns**
**Bad****9.1%**
return rate — above 5% kills the launch gate
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
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 ~~](https://flapen.com/research/methodology)
## **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.
600400Spike '24Black Friday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/nema-10-30-extension-cord/trend)
## **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.
0%4%$2K8%$4K12%$6K16%$8K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**$89.77**4.7★63 rev](https://www.amazon.com/dp/B0DYK86465) [2**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**$45.62**4.8★176 rev](https://www.amazon.com/dp/B0D4CNQZ5J) [3**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**$27.21**4.8★651 rev](https://www.amazon.com/dp/B08M3G4PPW) [4**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**$45.10**5.0★9 rev](https://www.amazon.com/dp/B0FQBG5ZZP) [5**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**$55.42**4.6★648 rev](https://www.amazon.com/dp/B08XBK355T)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**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**$45.10**9 rev10mo ago](https://www.amazon.com/dp/B0FQBG5ZZP) [**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**$25.31**136 rev10mo ago](https://www.amazon.com/dp/B0FQBG497S) [**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**$268.42**48 rev1y ago](https://www.amazon.com/dp/B0F6BY4YKL) [**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**$70.74**31 rev1y ago](https://www.amazon.com/dp/B0F9STNZ9T) [**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**$37.73**133 rev1y ago](https://www.amazon.com/dp/B0F1D73T9X)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$45.10**5.0★**▲ 202%**](https://www.amazon.com/dp/B0FQBG5ZZP) [**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**$25.31**4.9★**▲ 146%**](https://www.amazon.com/dp/B0FQBG497S) [**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**$29.33**4.8★**▲ 128%**](https://www.amazon.com/dp/B08LK4N5MX) [**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**$38.83**4.6★**▲ 118%**](https://www.amazon.com/dp/B0DMZBSXPL) [**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**$34.99**4.7★**▲ 114%**](https://www.amazon.com/dp/B09ND2X7XR)
**~~View all trending →~~**
## **What buyers say about nema 10-30 extension cord**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Advertised Vs Actual Product**30%
*“It's as advertised”*
**Quality-Overall**22%
*“build well it will last a long time”*
**Charging**11%
*“Great for EV chargers”*
**Durability**8%
*“Very durable”*
**Value For Money**5%
*“Budget friendly”*
**Weight Heavy**4%
*“Heavy duty”*
**Strength**3%
*“Strong and Easy to Use”*
**Ease Of Use**3%
*“Strong and Easy to Use”*
**Material Quality**2%
*“Good quality material”*
**Heating**2%
*“no over heating built fantastic”*
### **What buyers complain about **
**Size-Overall**43%
*“It was to short”*
**Quality-Overall**12%
*“exhibited an overall low build quality”*
**Connectivity-Overall**7%
*“Given the safety risk of a faulty power connection”*
**Rope/Wire Tangling**5%
*“the cord wouldnt reach”*
**Thickness**5%
*“we're spread thin after the two car purchases”*
**Charging**5%
*“soon it began charging at 16 Amps”*
**Heating**5%
*“it seemed to overheat”*
### **Top return reasons **
**Compatibility-Overall**25%
**Size-Overall**18%
**Add-Ons/Attachments**13%
**Charging**8%
**Functionality-Overall**7%
**Length**4%
**Connectivity-Overall**4%
**Advertised Vs Actual Product**4%
**Value For Money**4%
**Socket/Port/Plug**3%
## **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.
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