---
title: "Waterproof Plug Cover — $48K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/electronics/waterproof-plug-cover"
last_updated: "2026-08-11T03:31:21.971Z"
locale: en
meta:
description: "Niche score 44/100 · $48K/yr market · 53K searches/yr · $11.32 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · $48K/yr market · 53K searches/yr · $11.32 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Waterproof Plug Cover — $48K/yr Amazon US Niche (2026) - Flapen"
---
# **waterproof plug cover**
**Skip it**
A small market ($48K/yr) — this niche doesn't clear our bar today.
Market size 12Growth 59Conversion 79Competition 51Returns 33Price range 51Avg price 44Brand share 52Review moat 43Quality gap 27
**Conversion**
**Great****8.0%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Good****+34.6%**
90-day search growth — must beat 0% to launch
**Brand share**
**Good****74%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****54%**
top-5 click share — leaders hold, buyers still browse
**Price range**
**Good****$4.66–$25.75**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****$11.32**
avg listing price — sweet spot $15–$100
**Review moat**
**Okay****2,184.47**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Okay****4.3%**
return rate — above 5% kills the launch gate
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$48K**
$48K/yr · 53K searches
According to Flapen's Amazon United States niche tracking, waterproof plug cover is a $48K/yr Amazon United States market (53K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Nov–Dec. Verdict: Skip it — 44/100.
Data updated Jul 17, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **waterproof plug cover market data**
- **Units sold / yr**
- **4K–5K**
- avg 100–250/product
- **Revenue / yr**
- **$45K–$57K**
- units × avg price
- **Conversion rate**
- **8.0%**
- **Avg BSR**
- **#60**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **93%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **43 months**
- **Avg seller age**
- **175 days**
## **Competition & brand share**
The top 5 products take 54% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**20 **▲rising
**Sellers**
**53**
**Top-5 brand share**
**74%**
Top 20: 100%
**Top-5 click share**
**54%**
Top 20: 90%
**Open market**
**21%**
- cismorvex29% - Flemoon18% - CFMASTER11% - Mellbree9% - Hrensaw6% - PALARINE5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +34.6% search growth over the last 90 days.
3K2KSpike '24Holiday '24Spike '25Holiday '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Nov, Dec · busiest ÷ quietest = 4.6×
[**Open Trend **](https://flapen.com/research/us/electronics/waterproof-plug-cover/trend)
## **Top waterproof plug cover search terms**
- **waterproof plug cover**14K/yr+66.1%5.5% conv. - **extension cord plug cover**9K/yr+9.9%7.7% conv. - **outdoor plug protector**8K/yr+73.7%6.2% conv. - **plug covers for cords**7K/yr-14.7%5.1% conv. - **waterproof plug protector**6K/yr+15.1%5.2% conv. - **plug protector outdoor**5K/yr+67.8%7.0% conv. - **outdoor waterproof plug protector**3K/yr+34.2%6.1% conv. [**All search terms **](https://flapen.com/research/us/electronics/waterproof-plug-cover/search-terms)
## **Top waterproof plug cover 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%$8K1001K10K100K 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**Cismorvex 2 Pack Outdoor Extension Cord Safety Cover with Waterproof Seal IP54 Water-Resistant Weatherproof Electrical Connection Box with 2 Latches Plug Socket Holiday Decoration Light Black**cismorvex**$7.53**4.6★211 rev](https://www.amazon.com/dp/B0FR56387C) [2**Extension Cord Cover Outdoor Cord Connector Protector IP54 Water-Resistant Indoor Electrical Safety Box for Plug Outlet Tool Holiday Light Black**CFMASTER**$6.03**4.5★2,293 rev](https://www.amazon.com/dp/B0BW3H3KZZ) [3![Flemoon [3 Pack] Outdoor Extension Cord Safety Cover with Waterproof Seal Weatherproof Electrical Connection Box to Protect Outdoor Outlet Plug Socket Christmas Holiday Decoration Light Black](https://m.media-amazon.com/images/I/41vgbuIhQoL.jpg)**Flemoon \[3 Pack\] Outdoor Extension Cord Safety Cover with Waterproof Seal Weatherproof Electrical Connection Box to Protect Outdoor Outlet Plug Socket Christmas Holiday Decoration Light Black**Flemoon**$16.09**4.5★10,419 rev](https://www.amazon.com/dp/B08CMQHYLL) [4**3 Pack Outdoor Extension Cord Safety Cover with Waterproof Seal IP54 Water-Resistant Weatherproof Electrical Connection Box with 2 Latches Plug Socket Holiday Decoration Light Black**cismorvex**$9.93**4.7★706 rev](https://www.amazon.com/dp/B0FHP1FNBD) [5**Outdoor Plug Cover Waterproof Extension Cord Plug Protector for 2 & 3 Prong 120V Outlets - 2 Pack Weather Proof Exterior End Cap for Outside Electrical Plugs Black**Mellbree**$14.84**4.6★103 rev](https://www.amazon.com/dp/B0FX3L8NJN)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**PALARINE 3 Pack Outdoor Extension Cord Safety Cover with Waterproof Seal - Compact Outdoor Plug Cover IP54 Water-Resistant Protection for Plug Perfect for Holiday Lights Camping and Garden Tools**PALARINE**$7.63**155 rev4mo ago](https://www.amazon.com/dp/B0G5Z56CNJ) [**Mellbree Outdoor Plug Cover Waterproof Extension Cord Plug Protector for 2 & 3 Prong 120V Outlets - Weather Proof Exterior End Cap for Outside Electrical Plugs Black**Mellbree**$9.40**103 rev7mo ago](https://www.amazon.com/dp/B0G64ZPYB6) [**Outdoor Plug Cover Waterproof Extension Cord Plug Protector for 2 & 3 Prong 120V Outlets - 2 Pack Weather Proof Exterior End Cap for Outside Electrical Plugs Black**Mellbree**$14.84**103 rev8mo ago](https://www.amazon.com/dp/B0FX3L8NJN) [**FLEMOON IP55 Outdoor Electrical Box Waterproof with Detachable Awning Covers 7.1 * 3.9 * 2.4 inch Weatherproof Extension Cord Cover Easy Installation for Outdoor Plug Outlet String Lights Black**Flemoon**$15.36**159 rev9mo ago](https://www.amazon.com/dp/B0FW4HT8CC) [**Cismorvex 2 Pack Outdoor Extension Cord Safety Cover with Waterproof Seal IP54 Water-Resistant Weatherproof Electrical Connection Box with 2 Latches Plug Socket Holiday Decoration Light Black**cismorvex**$7.53**211 rev10mo ago](https://www.amazon.com/dp/B0FR56387C)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Mellbree Outdoor Plug Cover Waterproof Extension Cord Plug Protector for 2 & 3 Prong 120V Outlets - Weather Proof Exterior End Cap for Outside Electrical Plugs Black**Mellbree**$9.40**4.6★**▲ 310%**](https://www.amazon.com/dp/B0G64ZPYB6) [**PALARINE 3 Pack Outdoor Extension Cord Safety Cover with Waterproof Seal - Compact Outdoor Plug Cover IP54 Water-Resistant Protection for Plug Perfect for Holiday Lights Camping and Garden Tools**PALARINE**$7.63**4.6★**▲ 295%**](https://www.amazon.com/dp/B0G5Z56CNJ) [**Cismorvex 2 Pack Outdoor Extension Cord Safety Cover with Waterproof Seal IP54 Water-Resistant Weatherproof Electrical Connection Box with 2 Latches Plug Socket Holiday Decoration Light Black**cismorvex**$7.53**4.6★**▲ 235%**](https://www.amazon.com/dp/B0FR56387C) [**FLEMOON IP55 Outdoor Electrical Box Waterproof with Detachable Awning Covers 7.1 * 3.9 * 2.4 inch Weatherproof Extension Cord Cover Easy Installation for Outdoor Plug Outlet String Lights Black**Flemoon**$15.36**4.7★**▲ 221%**](https://www.amazon.com/dp/B0FW4HT8CC) [**Outdoor Plug Cover Waterproof Extension Cord Plug Protector for 2 & 3 Prong 120V Outlets - 2 Pack Weather Proof Exterior End Cap for Outside Electrical Plugs Black**Mellbree**$14.84**4.6★**▲ 127%**](https://www.amazon.com/dp/B0FX3L8NJN)
**~~View all trending →~~**
## **What buyers say about waterproof plug cover**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**14%
*“Excellent product”*
**Advertised Vs Actual Product**12%
*“As described”*
**Water Resistance**8%
*“Great waterproofing”*
**Assembly/Installation**7%
*“easy to put together”*
**Size-Overall**6%
*“Fits as advertised”*
**Value For Money**6%
*“Good deal”*
**Ease Of Use**5%
*“Easy to use”*
**Efficiency**4%
*“Works just as well for holiday lights as it does for something more utilitarian like a power saw in the yard”*
**Durability**4%
*“Seems durable”*
**Security**4%
*“it feels secure”*
### **What buyers complain about **
**Size-Overall**16%
*“Very large”*
**Water Resistance**11%
*“No water proofs”*
**Leak-Proof**5%
*“IT LEAKS”*
**Ease Of Use**5%
*“use a little tricky to open”*
**Quality-Overall**5%
*“perhaps some quality control issues at the least”*
**Durability**5%
*“Broken”*
**Thickness**3%
*“Doesn't fit thick cords”*
**Strength**3%
*“not as sturdy as I expected”*
**Locking Mechanism**3%
*“Locking mechanism easily breaks off”*
**Compatibility-Overall**2%
*“it doesn't fit”*
### **Top return reasons **
**Size-Overall**68%
**Compatibility-Overall**7%
**Advertised Vs Actual Product**5%
**Functionality-Overall**3%
**Add-Ons/Attachments**2%
**Defective Material/Parts**2%
**Value For Money**2%
**Assembly/Installation**2%
**Connectivity-Overall**1%
**Socket/Port/Plug**1%
## **Common questions**
- **Is waterproof plug cover profitable to sell on Amazon United States?**
- The niche generates $48K/yr across 30 tracked products. 5 of 5 products launched in the last 360 days are still selling. 90-day search growth is +34.6%. Flapen's verdict: Skip it (44/100).
- **How competitive is the waterproof plug cover niche?**
- 20 brands and 53 sellers compete. The top 5 products take 54% of clicks and top 5 brands hold 74% of demand.
- **What do buyers complain about in waterproof plug cover?**
- Top complaints mined from reviews: Size-Overall, Water Resistance, Leak-Proof. The return rate is 4.3%.
- **When does demand for waterproof plug cover peak?**
- Demand peaks in Nov–Dec; the busiest month runs 4.6× the quietest.
- **What does it cost to enter the waterproof plug cover niche?**
- Listings span $4.66–$25.75; the average listing price is $11.32 (sweet spot $15–$100). The average incumbent carries 2,184 reviews — the moat a new listing must climb.
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