---
title: "Gfci Adapter — $75K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/gfci-adapter"
last_updated: "2026-08-09T05:48:22.996Z"
locale: en
meta:
description: "Niche score 50/100 · $75K/yr market · 63K searches/yr · $20.76 avg price. A small market ($75K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · $75K/yr market · 63K searches/yr · $20.76 avg price. A small market ($75K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Gfci Adapter — $75K/yr Amazon US Niche (2026) - Flapen"
---
# **gfci adapter**
**Worth a look**
Shows a sweet-spot price point ($20.76 avg), but a small market ($75K/yr) keeps it on the watch list.
Market size 19Growth 55Conversion 65Competition 44Returns 84Price range 83Avg price 89Brand share 32Review moat 57Quality gap 28
**Avg price**
**Great****$20.76**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.5%**
return rate — above 5% kills the launch gate
**Price range**
**Great****$10.73–$39.74**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****5.8%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****1,236.68**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+28.1%**
90-day search growth — must beat 0% to launch
**Competition**
**Okay****59%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Okay****86%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.6★**
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 ~~](https://flapen.com/research/methodology)
## **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.
2K1KHoliday '24Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Jun · busiest ÷ quietest = 1.8×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/gfci-adapter/trend)
## **Top gfci adapter search terms**
- **gfci adapter**30K/yr+35.1%4.4% conv. - **gfci outlet adapter**11K/yr+7.6%4.0% conv. - **gfci adapter plug**5K/yr+41.2%6.2% conv. - **gfci plug adapter**6K/yr+16.1%5.6% conv. - **portable gfci adapter**3K/yr+74.9%6.8% conv. - **portable gfci**4K/yr+8.7%3.2% conv. - **plug in gfci**3K/yr+8.8%4.7% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/gfci-adapter/search-terms)
## **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.
0%10%$8K20%$15K30%$23K40%$30K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 22 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**$14.94**4.4★129 rev](https://www.amazon.com/dp/B0FHH48B2Y) [2**Tower Manufacturing 30440003 Auto-Reset 15 AMP Grounded 3-Prong GFCI 5-Outlet Adapter White**Tower**$26.67**4.4★707 rev](https://www.amazon.com/dp/B00YPBITXU) [3**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**$26.27**4.7★1,216 rev](https://www.amazon.com/dp/B08G4HNCR1) [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**$17.23**4.6★283 rev](https://www.amazon.com/dp/B06XTQ86W3) [5**ELEGRP Single Outlet GFCI Adapter 15 AMP Grounded 3-Prong GFCI Adapter for Indoor Use with Automatic Reset UL Listed Yellow 1 Pack**ELEGRP**$17.70**4.6★158 rev](https://www.amazon.com/dp/B096WTSVK3)
**~~View all top sellers →~~**
### **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**$38.87**12 rev4mo ago](https://www.amazon.com/dp/B0GT4ZZ93G) [**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**$14.94**129 rev1y ago](https://www.amazon.com/dp/B0FHH48B2Y) [**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**$16.73**129 rev1y ago](https://www.amazon.com/dp/B0FHH4VGCV) [**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**$39.74**68 rev1y ago](https://www.amazon.com/dp/B0DKFBG4GR) [**GREATIDE GFCI Adapter 15 AMP Grounded 3-Prong Single Outlet Adapter for Indoor Use with Manual Reset UL Listed Yellow 1 Pack**GREATIDE**$16.27**35 rev1y ago](https://www.amazon.com/dp/B0DPKGMF1H)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**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**$38.87**4.4★**▲ 208%**](https://www.amazon.com/dp/B0GT4ZZ93G) [**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**$14.94**4.4★**▲ 41%**](https://www.amazon.com/dp/B0FHH48B2Y) [**ELEGRP Single Outlet GFCI Adapter 15 AMP Grounded 3-Prong GFCI Adapter for Indoor Use with Automatic Reset UL Listed Yellow 1 Pack**ELEGRP**$17.70**4.6★**▲ 36%**](https://www.amazon.com/dp/B096WTSVK3) [**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**$19.08**4.8★**▲ 22%**](https://www.amazon.com/dp/B098JRB83Y) [**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**$18.81**4.7★**▲ 21%**](https://www.amazon.com/dp/B098JVW7Z5)
**~~View all trending →~~**
## **What buyers say about gfci adapter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**15%
*“Good Quality”*
**Socket/Port/Plug**12%
*“also has a bunch of USB ports”*
**Advertised Vs Actual Product**11%
*“As advertised”*
**Ease Of Use**9%
*“Easy Peasy”*
**Value For Money**6%
*“Great value”*
**Size-Overall**6%
*“Fit as advertised”*
**Assembly/Installation**6%
*“Easy to assemble”*
**Charging**5%
*“Allows me to charge usb devices at a convenient location”*
**Pressure**3%
*“Now my pressure washer works again”*
**Portability**3%
*“This is an excellent traveling companion”*
### **What buyers complain about **
**Socket/Port/Plug**12%
*“Keeps falling out of socket”*
**Durability**11%
*“Broke”*
**Functionality-Overall**11%
*“Did not work”*
**Strength**6%
*“But the rotating feature makes it a bit flimsy”*
**Quality-Overall**6%
*“POOR QUALITY”*
**Charging**5%
*“The USB ports are not fast charging”*
**Weight Heavy**4%
*“A bit heavy and bulky”*
**Ease Of Use**3%
*“needs to be held down hard”*
**Assembly/Installation**3%
*“Hard to install”*
**Design-Overall**3%
*“Needs a better design”*
### **Top return reasons **
**Size-Overall**34%
**Socket/Port/Plug**11%
**Functionality-Overall**10%
**Compatibility-Overall**8%
**Advertised Vs Actual Product**6%
**Defective Material/Parts**4%
**Value For Money**4%
**Charging**3%
**Connectivity-Overall**2%
**Mechanism Issues**2%
## **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.
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