Nema 6-20 Extension Cord
FailShoppers spend an estimated $44K a year here, so Nema 6-20 Extension Cord is a Fail.
- Flapen Score
- 46 / 100Ranks 5,399 of 9,536 Tools & Home Improvement niches · −2 vs the category median of 4846
- Market size
- $44K/yr20K searches / yr
- 90-day growth
- +12.6%search demand this quarter
- Competition
- 48%top-5 click share · 12 brands · 18 sellers
Flapen Score
Nema 6-20 Extension Cord against its category
The dotted line is the Tools & Home Improvement average. Past it, Nema 6-20 Extension Cord is stronger. Inside it, weaker.
Market
The Nema 6-20 Extension Cord market on Amazon at a glance
Shoppers on Amazon United States searched for Nema 6-20 Extension Cord 20K times last year and spent an estimated $44K. The top 5 brands take 80% of clicks. Flapen scores it 46 out of 100, a Fail.
01 · Demand
An estimated 6.0% of those searches ended in a purchase.
Shoppers searched for this 20K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 6.0% of those searches ended in a purchase. Searches in the last 90 days moved +12.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $44K a year.
- Searches, last 12 months
- 20K
- Growth, 90 days vs prior 90
- +12.6%
- Conversion, latest week
- 6.0%
- Market size, estimated
- $44Ka year
- Peak month
- July1.4× the quietest month
- Top search term
- nema 6-20 extension cord13K searches a year
02 · Price
A sale here is worth $36.30.
Listings sell for $36.30 on average, from $12.20 to $73.97. Amazon reports units sold in ranges. This niche sold 1K to 1K a year. The average listing sells 0 to 100 of them. At $36.30 that is $0 to $4K a year per listing.
- Average price
- $36.30inside the $15 to $100 sweet spot
- Price range
- $12.20–$73.97
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 1K–1K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$4K
- Returns
- 5.8%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
88% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 11.9% of listings are out of stock. The average listing ranks #711 within Cords, Adapters & Multi-Outlets. It carries 270 reviews at 4.69 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 88%
- Prime listings
- 100%
- Out of stock, average day
- 11.9%
- Average rank
- #711in Cords, Adapters & Multi-Outlets
- Average rating
- 4.69 starsAmazon United States average 4.42 stars
- Average reviews
- 270per listing
- Listings tracked
- 26
04 · Newcomers
1 of last year's 5 launches cleared the first-year sales bar.
5 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 42 months on average, so the names here are settling in.
- Launched, last 12 months
- 5
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 42 months
Products
Top Nema 6-20 Extension Cord products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 27, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Parkworld NEMA 6-20 Extension Cord 6-20P to 6-20R (T Blade Female Also for 6-15R Adapter) 250V 20A 5000W UL Listed (25FT)
- Price
- $44.93
- Rating
- 4.8/5
- Reviews
- 1,012
- Age
- 7y ago

NEMA 6-20 Plug to 6-20 Connector Extension Power Cord - 25FT 20A/250V 12/3 SJTW T Blade - Black
- Price
- $39.05
- Rating
- 4.8/5
- Reviews
- 290
- Age
- 6y ago

Parkworld NEMA 6-20 Extension Cord 6-20P to 6-20R (T Blade Female Also for 6-15R Adapter) 250V 20A 5000W UL Listed (6FT)
- Price
- $24.28
- Rating
- 4.8/5
- Reviews
- 1,012
- Age
- 7y ago

PLUGTUL NEMA 6-20 Extension Cord 25FT Heavy Duty Extension Cord with Lighted Outlet 20A/250V 12Gauge SJTW ETL Listed 6-20P to 6-20R (T Blade Female Adapter) - Black
- Price
- $36.12
- Rating
- 4.8/5
- Reviews
- 34
- Age
- 1y ago
![M1A2 NEMA 6-20 Extension Cord 6-20P to 6-20R [Also for 6-15R Adapter] Tesla Mobile EV Level 2 Charging Heavy Duty 220 Volts 20 Amp 25FT ETL Listed](https://m.media-amazon.com/images/I/41b+73aQv1L.jpg)
M1A2 NEMA 6-20 Extension Cord 6-20P to 6-20R [Also for 6-15R Adapter] Tesla Mobile EV Level 2 Charging Heavy Duty 220 Volts 20 Amp 25FT ETL Listed
- Price
- $43.25
- Rating
- 4.8/5
- Reviews
- 47
- Age
- 2y ago
Trending
estimated 90-day click momentum
Saysurey 50 ft Nema 6-20 Extension Cord Nema 6-20p Male Plug to 6-20r/6-15r Female Receptacle 20 Amp T-Blade Outlet Extension Power Cord with Waterproof Sockets Heavy Duty 12/3 Awg 250v 5000w
- Price
- $70.09
- Rating
- 4.8/5
- Reviews
- 34
- Age
- 8mo ago

EP 25 Ft 12/3 SJTW Outdoor Extension Cord NEMA 6-20 P/R 20A 250V Yellow
- Price
- $30.48
- Rating
- 4.2/5
- Reviews
- 58
- Age
- 1y ago
![MECMO 6ft 15 Amp Household to 20 Amp AC Power Adapter Waterproof Cable 12AWG SJTW [4 in 1] NEMA 5-15P to 5-15R 5-20R 6-15R 6-20R T Blade Adaptor 15A 125V to 20A 250V 15Amp to 20Amp Extension Cord](https://m.media-amazon.com/images/I/41hKWfZmDZL.jpg)
MECMO 6ft 15 Amp Household to 20 Amp AC Power Adapter Waterproof Cable 12AWG SJTW [4 in 1] NEMA 5-15P to 5-15R 5-20R 6-15R 6-20R T Blade Adaptor 15A 125V to 20A 250V 15Amp to 20Amp Extension Cord
- Price
- $19.35
- Rating
- 4.8/5
- Reviews
- 204
- Age
- 1y ago

Saysurey 6.6 ft Nema 6-20 Extension Cord Nema 6-20p Male Plug to 6-20r/6-15r Female Receptacle 20 Amp T-Blade Outlet Extension Power Cord with Waterproof Sockets Heavy Duty 12/3 Awg 250v 5000w
- Price
- $19.50
- Rating
- 4.8/5
- Reviews
- 34
- Age
- 8mo ago

EP 6 Ft 12/3 SJTW Outdoor Extension Cord NEMA 6-20 P/R 20A 250V Yellow
- Price
- $12.20
- Rating
- 4.2/5
- Reviews
- 58
- Age
- 1y ago
Newest
by launch date
Saysurey 50 ft Nema 6-20 Extension Cord Nema 6-20p Male Plug to 6-20r/6-15r Female Receptacle 20 Amp T-Blade Outlet Extension Power Cord with Waterproof Sockets Heavy Duty 12/3 Awg 250v 5000w
- Price
- $70.09
- Rating
- 4.8/5
- Reviews
- 34
- Age
- 8mo ago

Saysurey NEMA 6-20 Extension Cord NEMA 6-20P Male Plug to 6-20R/6-15R Female Receptacle 20 Amp T-Blade Outlet Extension Power Cord with Waterproof Sockets Heavy Duty 12/3 AWG 250V 5000W(16 ft)
- Price
- $34.41
- Rating
- 4.8/5
- Reviews
- 34
- Age
- 8mo ago

Saysurey 6.6 ft Nema 6-20 Extension Cord Nema 6-20p Male Plug to 6-20r/6-15r Female Receptacle 20 Amp T-Blade Outlet Extension Power Cord with Waterproof Sockets Heavy Duty 12/3 Awg 250v 5000w
- Price
- $19.50
- Rating
- 4.8/5
- Reviews
- 34
- Age
- 8mo ago

Saysurey 25 ft Nema 6-20 Extension Cord Nema 6-20p Male Plug to 6-20r/6-15r Female Receptacle 20 Amp T-Blade Outlet Extension Power Cord with Waterproof Sockets Heavy Duty 12/3 Awg 250v 5000w
- Price
- $42.85
- Rating
- 4.8/5
- Reviews
- 34
- Age
- 8mo ago

FIRMERST 20 AMP 10 FT 12 Gauge Extension Cord NEMA 6-20P to 6-20R 250 Volt
- Price
- $28.94
- Rating
- 4.7/5
- Reviews
- 102
- Age
- 10mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 48% of clicks. Leaders hold, but buyers still shop past them.
Brands
12 rising
Sellers
18
Est. top-5 brand share
80%
Top 20: 100%
Est. top-5 click share
48%
Top 20: 93%
Open market
15%
- Parkworld36%
- PLUGTUL15%
- Saysurey11%
- oviitech10%
- M1A28%
- EP6%
- Open — no brand owns it (6 brands, 15%)
Demand
Nema 6-20 Extension Cord search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.4×
Reviews and returns
What reviews say buyers love and hate about Nema 6-20 Extension Cord
We read the reviews and the return reasons for every product selling here.
“It did not match description”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
19 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Nema 6-20 Extension Cord questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









