gfci adapter
Worth a lookShows a sweet-spot price point ($20.76 avg), but a small market ($75K/yr) keeps it on the watch list.
Avg price
Great$20.76avg listing price — sweet spot $15–$100
Returns
Great1.5%return rate — above 5% kills the launch gate
Price range
Great$10.73–$39.74cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good5.8%search→purchase rate — share of searches ending in a sale
Review moat
Good1,236.68avg incumbent reviews — the moat a new listing must climb
Growth
Good+28.1%90-day search growth — must beat 0% to launch
Competition
Okay59%top-5 click share — leaders hold, buyers still browse
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Market size
Bad$75K$75K/yr · 63K searches
According to Flapen's Amazon United States niche tracking, gfci adapter is a $75K/yr Amazon United States market (63K searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Jan–Jun. Verdict: Worth a look — 50/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
gfci adapter market data
- Units sold / yr
- 4K–5K
- avg 100–250/product
- Revenue / yr
- $83K–$104K
- units × avg price
- Conversion rate
- 5.8%
- Avg BSR
- #192
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 73%
- Out of stock
- 1.0%
- Avg brand age
- 56 months
- Avg seller age
- 164 days
Competition & brand share
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.Brands
11 falling
Sellers
19
Top-5 brand share
86%
Top 20: 100%
Top-5 click share
59%
Top 20: 98%
Open market
10%
- OAONAN36%
- ELEGRP19%
- Tower16%
- DEWENWILS9%
- AIDA6%
- VINTAR4%
- Open — no brand owns it (5 brands, 10%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +28.1% search growth over the last 90 days.Peak months: Jan, Jun · busiest ÷ quietest = 1.8×
Top gfci adapter search terms
- gfci adapter30K/yr
- gfci outlet adapter11K/yr
- gfci adapter plug5K/yr
- gfci plug adapter6K/yr
- portable gfci adapter3K/yr
- portable gfci4K/yr
- plug in gfci3K/yr
Top gfci adapter 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 22 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
OAONAN GFCI Adapter 15 Amp 3 Prongs Grounded 5 Years Warranty GFCI Plug Portable Plug-in Ground Fault Circuit Interrupter to Protect Electric Safety for Pressure Washer Hot Tub Air Conditioner
OAONAN$14.944.4★129 rev
Tower Manufacturing 30440003 Auto-Reset 15 AMP Grounded 3-Prong GFCI 5-Outlet Adapter White
Tower$26.674.4★707 rev
DEWENWILS 3 FT Automatic GFCI Extension Cord Outdoor 12/3 Gauge Extension Cord for Multiple Appliances Heavy Duty Power Cable with LED Lighted 3 Prong Plug Yellow UL Listed
DEWENWILS$26.274.7★1,216 rev
OAONAN GFCI Adapter 15 Amp 3 Prongs Grounded 5 Years Warranty GFCI Plug Portable Plug-in Ground Fault Circuit Interrupter to Protect Electric Safety for Pressure Washer Hot Tub Air Conditioner
OAONAN$17.234.6★283 rev
ELEGRP Single Outlet GFCI Adapter 15 AMP Grounded 3-Prong GFCI Adapter for Indoor Use with Automatic Reset UL Listed Yellow 1 Pack
ELEGRP$17.704.6★158 rev
Newest
by launch date
LENCENT 2 Prong GFCI Power Strip with Surge Protection GFCI 2 Prong to 3 Prong Outlet Adapter 6 Outlets & 4 USB Ports 1050J Surge Protector 6 FT Extension Cord for Non-Grounded Outlets ETL Listed
LENCENT$38.8712 rev
OAONAN GFCI Adapter 15 Amp 3 Prongs Grounded 5 Years Warranty GFCI Plug Portable Plug-in Ground Fault Circuit Interrupter to Protect Electric Safety for Pressure Washer Hot Tub Air Conditioner
OAONAN$14.94129 rev
OAONAN GFCI Adapter 15 Amp 3 Prongs Grounded 5 Years Warranty GFCI Plug Portable Plug-in Ground Fault Circuit Interrupter to Protect Electric Safety for Pressure Washer Hot Tub Air Conditioner
OAONAN$16.73129 rev
2 Prong GFCI Power Strip VINTAR 2 Prong to 3 Prong GFCI Plug Adapter 6ft Extension Cord with 6 Outlets & 4 USB(2 USB-C) 1050J Surge Protector Polarized Plug Wall Mount for Non-Grounded Outlet
VINTAR$39.7468 rev
GREATIDE GFCI Adapter 15 AMP Grounded 3-Prong Single Outlet Adapter for Indoor Use with Manual Reset UL Listed Yellow 1 Pack
GREATIDE$16.2735 rev
Trending
90-day click momentumLENCENT 2 Prong GFCI Power Strip with Surge Protection GFCI 2 Prong to 3 Prong Outlet Adapter 6 Outlets & 4 USB Ports 1050J Surge Protector 6 FT Extension Cord for Non-Grounded Outlets ETL Listed
LENCENT$38.874.4★
OAONAN GFCI Adapter 15 Amp 3 Prongs Grounded 5 Years Warranty GFCI Plug Portable Plug-in Ground Fault Circuit Interrupter to Protect Electric Safety for Pressure Washer Hot Tub Air Conditioner
OAONAN$14.944.4★
ELEGRP Single Outlet GFCI Adapter 15 AMP Grounded 3-Prong GFCI Adapter for Indoor Use with Automatic Reset UL Listed Yellow 1 Pack
ELEGRP$17.704.6★
ELEGRP G1215PA2 G20PASR Patented Auto-Monitoring GFCI Replacement Plug Assembly Auto Reset 15 Amp Non-Grounded 2 Wires 2-Prongs for Power Pressure Washer Pool Pump UL/CUL Listed 1 Pack Black
ELEGRP$19.084.8★
ELEGRP G1215CM2 G20CMR Patented Auto-Monitoring GFCI Replacement Plug Inline Assembly Manual Reset 15 Amp Non-Grounded 2 Wires 2-Prongs for Power Tools Lawn Equipment etc UL Listed 1 Pack Black
ELEGRP$18.814.7★
What buyers say about gfci adapter
What buyers praise and complain about, mined from review topics.What buyers love
“Good Quality”
“also has a bunch of USB ports”
“As advertised”
“Easy Peasy”
“Great value”
“Fit as advertised”
“Easy to assemble”
“Allows me to charge usb devices at a convenient location”
“Now my pressure washer works again”
“This is an excellent traveling companion”
What buyers complain about
“Keeps falling out of socket”
“Broke”
“Did not work”
“But the rotating feature makes it a bit flimsy”
“POOR QUALITY”
“The USB ports are not fast charging”
“A bit heavy and bulky”
“needs to be held down hard”
“Hard to install”
“Needs a better design”
Top return reasons
Common questions
- Is gfci adapter profitable to sell on Amazon United States?
- The niche generates $75K/yr across 22 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +28.1%. Flapen's verdict: Worth a look (50/100).
- How competitive is the gfci adapter niche?
- 11 brands and 19 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 86% of demand.
- What do buyers complain about in gfci adapter?
- Top complaints mined from reviews: Socket/Port/Plug, Durability, Functionality-Overall. The return rate is 1.5%.
- When does demand for gfci adapter peak?
- Demand peaks in Jan–Jun; the busiest month runs 1.8× the quietest.
- What does it cost to enter the gfci adapter niche?
- Listings span $10.73–$39.74; the average listing price is $20.76 (sweet spot $15–$100). The average incumbent carries 1,237 reviews — the moat a new listing must climb.