---
title: "Underground Electrical Junction Box — $54K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/underground-electrical-junction-box"
last_updated: "2026-08-07T11:18:38.494Z"
locale: en
meta:
description: "Niche score 55/100 · $54K/yr market · 54K searches/yr · $42.37 avg price. A small market ($54K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · $54K/yr market · 54K searches/yr · $42.37 avg price. A small market ($54K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Underground Electrical Junction Box — $54K/yr Amazon US Niche (2026) - Flapen"
---
# **underground electrical junction box**
**Worth a look**
Shows a sweet-spot price point ($42.37 avg), but a small market ($54K/yr) keeps it on the watch list.
Market size 14Growth 74Conversion 30Competition 76Returns 44Price range 52Avg price 95Brand share 87Review moat 69Quality gap 40
**Avg price**
**Incredible****$42.37**
avg listing price — sweet spot $15–$100
**Brand share**
**Great****48%**
top-5 brand share — no brand owns this niche
**Competition**
**Great****39%**
top-5 click share — an open shelf
**Growth**
**Good****+58.3%**
90-day search growth — must beat 0% to launch
**Review moat**
**Good****722.53**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$6.55–$171.05**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Okay****3.5%**
return rate — above 5% kills the launch gate
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Conversion**
**Okay****2.4%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$54K**
$54K/yr · 54K searches
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, underground electrical junction box is a $54K/yr Amazon United States market (54K searches/yr). The top 5 brands hold 48% of demand. Demand peaks in Apr–May–Aug–Sep. Verdict: Worth a look — 55/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **underground electrical junction box market data**
- **Units sold / yr**
- **1K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$53K–$64K**
- units × avg price
- **Conversion rate**
- **2.4%**
- **Avg BSR**
- **#300**
- **Page quality**
- **0%**
- **Prime**
- **98%**
- **Sponsored**
- **93%**
- **Out of stock**
- **5.2%**
- **Avg brand age**
- **51 months**
- **Avg seller age**
- **168 days**
## **Competition & brand share**
Clicks spread well past the top 5 (39% combined) — an open shelf where new products get seen.
**Brands**
**22 **▼falling
**Sellers**
**74**
**Top-5 brand share**
**48%**
Top 20: 99%
**Top-5 click share**
**39%**
Top 20: 81%
**Open market**
**46%**
- Natotela13% - Adamax12% - MAKERELE9% - Tandefio8% - GZHDIAN6% - SZFUDIGO6%
## **Demand & seasonality**
Weekly Amazon search volume, last 90 weeks — +58.3% search growth over the last 90 days.
8K6KSpike '25Spike '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Apr, May, Aug, Sep · busiest ÷ quietest = 4.4×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/underground-electrical-junction-box/trend)
## **Top underground electrical junction box search terms**
- **underground junction box**14K/yr+58.6%1.5% conv. - **direct burial junction box**8K/yr+56.3%0.9% conv. - **underground electrical junction box**10K/yr+51.7%1.9% conv. - **underground electrical box**6K/yr+26.6%1.8% conv. - **underground splice box**5K/yr+78.4%1.5% conv. - **in ground electrical junction box**4K/yr+101.6%3.4% conv. - **in ground electrical box**4K/yr+70.4%1.5% conv. - **inground electrical box**3K/yr+54.0%1.1% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/underground-electrical-junction-box/search-terms)
## **Top underground electrical junction box 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%$9K1101001K10K 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**Adamax 910 Electrical Splice Box with 10-Inch Diameter 1-Piece Grey**Adamax**$43.25**4.7★220 rev](https://www.amazon.com/dp/B002XRYXSS) [2**Natotela 12.5x12.5x14.3in Underground Splice Boxes W/Solid Inspection Cover Deep Enclosure Plastic Precast Pull Distribution Pit Access Electrical Junction Boxes Drillable Tapered Wiring Cable Box**Natotela**$61.91**4.3★19 rev](https://www.amazon.com/dp/B0GCMFCDPG) [3**MAKERELE Waterproof Junction Box with Terminals and Screw IP68 3 Way Clamshell-Type Underground Electrical Junction Box Bury Waterproof Electrical Splice Box Maximum Inner Diameter 12mm**MAKERELE**$9.72**4.4★205 rev](https://www.amazon.com/dp/B0D3GSTQNL) [4**SZFUDIGO Outdoor Waterproof Junction Box PlasticOutdoor Cable Electrical Box Waterproof Open Splice Underground Electrical Junction Water Proof Box2 Way Wire Range 5-12mm Trailer Junction Box**SZFUDIGO**$9.56**4.5★125 rev](https://www.amazon.com/dp/B0CRD7KYY8) [5**KVMORZE 6Pcs Electrical Splice Box 6Underground Electrical Junction Box**KVMORZE**$37.26**4.3★29 rev](https://www.amazon.com/dp/B0DGLBNZ5B)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**DJC Supply 8 x 8 x 6 Non-Metallic Underground Terminal Junction Box Gray Watertight Seal PJB Plastic/Fiberglass Blend 1 Pack**DJC Supply**$32.00**13 rev4mo ago](https://www.amazon.com/dp/B0GSCHZHS8) [**Underground Splice Box with FRP Cover13.4 * 13.4 * 14 in Heavy-Duty Electrical Junction Box PE Pull Distribution Pit Access Deep Electrical Junction Box for Buried Wiring & Low Voltage.**GZHDIAN**$64.16**3 rev6mo ago](https://www.amazon.com/dp/B0GFMSK5CK) [**Underground Splice Box with FRP Cover24 * 16 * 16in Heavy-Duty Electrical Junction Box PE Pull Distribution Pit Access Deep Electrical Junction Box for Buried Wiring & Low Voltage.**GZHDIAN**$149.54**3 rev6mo ago](https://www.amazon.com/dp/B0GFN244LX) [**Natotela 12.5x12.5x14.3in Underground Splice Boxes W/Solid Inspection Cover Deep Enclosure Plastic Precast Pull Distribution Pit Access Electrical Junction Boxes Drillable Tapered Wiring Cable Box**Natotela**$61.91**19 rev7mo ago](https://www.amazon.com/dp/B0GCMFCDPG) [**Natotela 24x16x16in Underground Splice Boxes W/Solid Handle Inspection Cover Deep Enclosure Plastic Precast Pull Distribution Pit Access Electrical Junction Boxes Drillable Tapered Wiring Cable Box**Natotela**$155.37**19 rev7mo ago](https://www.amazon.com/dp/B0GCLN4KNL)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Underground Splice Box with FRP Cover24 * 16 * 16in Heavy-Duty Electrical Junction Box PE Pull Distribution Pit Access Deep Electrical Junction Box for Buried Wiring & Low Voltage.**GZHDIAN**$149.54**5.0★**▲ 157%**](https://www.amazon.com/dp/B0GFN244LX) [**Natotela 24x16x16in Underground Splice Boxes W/Solid Handle Inspection Cover Deep Enclosure Plastic Precast Pull Distribution Pit Access Electrical Junction Boxes Drillable Tapered Wiring Cable Box**Natotela**$155.37**4.3★**▲ 137%**](https://www.amazon.com/dp/B0GCLN4KNL) [**Underground Splice Box with FRP Cover13.4 * 13.4 * 14 in Heavy-Duty Electrical Junction Box PE Pull Distribution Pit Access Deep Electrical Junction Box for Buried Wiring & Low Voltage.**GZHDIAN**$64.16**5.0★**▲ 136%**](https://www.amazon.com/dp/B0GFMSK5CK) [**DJC Supply 8 x 8 x 6 Non-Metallic Underground Terminal Junction Box Gray Watertight Seal PJB Plastic/Fiberglass Blend 1 Pack**DJC Supply**$32.00**4.4★**▲ 134%**](https://www.amazon.com/dp/B0GSCHZHS8) [**Open Splice Junction Box 5-Pack | UL 514C | One-Piece Polycarbonate Box Code-Approved Durable DIY Electrical Splice Enclosure in Black | Fast Installation for Safe Wiring Connections**Generic**$27.54**4.7★**▲ 131%**](https://www.amazon.com/dp/B0FXS127YZ)
**~~View all trending →~~**
## **What buyers say about underground electrical junction box**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**21%
*“Very good quality box”*
**Advertised Vs Actual Product**11%
*“As advertised”*
**Size-Overall**7%
*“Good overall size to accommodate valves”*
**Efficiency**6%
*“Good for automotive uses too”*
**Strength**5%
*“Strong and easy to install and use”*
**Design-Overall**5%
*“Good design”*
**Ease Of Use**5%
*“Easy to use”*
**Durability**5%
*“Seems durable”*
**Value For Money**5%
*“Lower price”*
**Material Quality**4%
*“durable plastic material will definitely recommend it”*
### **What buyers complain about **
**Size-Overall**15%
*“wrong size for my needs”*
**Water Resistance**10%
*“However, the lid does not feature a watertight seal and sits slightly recessed, so expect some water or debris to collect inside if it is exposed to heavy rain or snow”*
**Strength**8%
*“Fragile and easily cracked”*
**Leak-Proof**8%
*“Leaked after 32 days being installed”*
**Quality-Overall**6%
*“Cheap made”*
**Advertised Vs Actual Product**4%
*“this did not fit like the description states”*
**Material Quality**3%
*“The grey plastic material is not well defined”*
**Locking Mechanism**3%
*“Locks not strong”*
**Speaker**3%
*“Outdoor speakers system”*
**Storage Capacity**3%
*“The work space was tight”*
### **Top return reasons **
**Size-Overall**77%
**Advertised Vs Actual Product**6%
**Value For Money**2%
**Functionality-Overall**2%
**Compatibility-Overall**2%
**Water Resistance**1%
**Defective Material/Parts**1%
**Assembly/Installation**1%
**Quality-Overall**1%
**Material Quality**1%
## **Common questions**
- **Is underground electrical junction box profitable to sell on Amazon United States?**
- The niche generates $54K/yr across 40 tracked products. 2 of 7 products launched in the last 360 days are still selling. 90-day search growth is +58.3%. Flapen's verdict: Worth a look (55/100).
- **How competitive is the underground electrical junction box niche?**
- 22 brands and 74 sellers compete. The top 5 products take 39% of clicks and top 5 brands hold 48% of demand.
- **What do buyers complain about in underground electrical junction box?**
- Top complaints mined from reviews: Size-Overall, Water Resistance, Strength. The return rate is 3.5%.
- **When does demand for underground electrical junction box peak?**
- Demand peaks in Apr–May–Aug–Sep; the busiest month runs 4.4× the quietest.
- **What does it cost to enter the underground electrical junction box niche?**
- Listings span $6.55–$171.05; the average listing price is $42.37 (sweet spot $15–$100). The average incumbent carries 723 reviews — the moat a new listing must climb.
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