---
title: "drain fly killer — $3.6M/yr Amazon United States Niche, Score 72/100 - Flapen"
canonical_url: "https://flapen.com/research/us/health-household/drain-fly-killer"
last_updated: "2026-07-20T18:44:16.460Z"
locale: en
meta:
description: "drain fly killer clears our launch bar: a $3.6M/yr market growing +150.0% this quarter with returns at 0.9%. Data updated Jul 2026."
"og:description": "drain fly killer clears our launch bar: a $3.6M/yr market growing +150.0% this quarter with returns at 0.9%. Data updated Jul 2026."
"og:title": "drain fly killer — $3.6M/yr Amazon United States Niche, Score 72/100 - Flapen"
---
# **drain fly killer**
**Launch it**
A $3.6M/yr market growing +150.0% this quarter with returns at 0.9% — clears our launch bar.
Market size 96Growth 96Conversion 97Competition 21Returns 95Price range 93Avg price 95Brand share 18Review moat 22Quality gap 84
**Conversion**
**Incredible****14.7%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Incredible****$3.6M**
$3.6M/yr · 879K searches
**Growth**
**Incredible****+150.0%**
90-day search growth — must beat 0% to launch
**Returns**
**Incredible****0.9%**
return rate — above 6% kills the launch gate
**Avg price**
**Incredible****$27.54**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$13.58–$59.55**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****9,791.31**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****75%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****93%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, drain fly killer is a $3.6M/yr Amazon United States market (879K searches/yr). The top 5 brands hold 93% of demand. Demand peaks in Jun–Jul–Oct. Verdict: Launch it — 72/100.
Data updated Jul 13, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **Market data**
- **Units sold / yr**
- **125K–150K**
- avg 6,000–8,000/product
- **Revenue / yr**
- **$3.4M–$4.1M**
- units × avg price
- **Launch success**
- **—**
- 1 of 1 new (360d)
- **Conversion rate**
- **14.7%**
- **Avg BSR**
- **#27**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **88%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **63 months**
- **Avg seller age**
- **150 days**
## **Competition**
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**10 **▼falling
**Sellers**
**30**
**Top-5 brand share**
**93%**
Top 20: 100%
**Top-5 click share**
**75%**
Top 20: 100%
**Open market**
**6%**
- Eco Strong33% - Green Gobbler33% - Accelerator by Dr. Pooper15% - Terro8% - Kinzua Environmental3% - Natural Armor2% - Open — no brand owns it (4 brands, 6%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +150.0% search growth over the last 90 days.
35K25KSpike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jun, Jul, Oct · busiest ÷ quietest = 4.6×
[**Open Trend **](https://flapen.com/research/us/health-household/drain-fly-killer/trend)
## **Product shelf**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%5%$178K10%$356K15%$534K20%$712K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 16 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Green Gobbler Fruit Fly Goodbye Gel Drain Treatment | Killer Flies & Eliminator (1 Gallon)**Green Gobbler**$34.29**4.1★15,452 rev](https://www.amazon.com/dp/B07CVM269Q) [2**Fruit Fly Drain Treatment | Drain Fly Eliminator | All-Natural Eliminates Gnats Sewer Flies and More - Works in All Drains - 1 Gallon**Eco Strong**$34.86**4.2★4,779 rev](https://www.amazon.com/dp/B0BCP3VT97) [3**Fruit Fly Drain Treatment | Drain Fly Eliminator | Eliminates Gnats Sewer Flies and More - Works in All Drains - 32 Fl Oz**Eco Strong**$17.03**4.2★4,779 rev](https://www.amazon.com/dp/B0BCNF3NCQ) [4**Drain Fly Killer Powder Eliminates Drain Flies & Sewer Flies in Drains Sinks Showers Fast-Acting Treatment - Septic Safe & Made in USA**Accelerator by Dr. Pooper**$39.82**4.1★461 rev](https://www.amazon.com/dp/B0F26Y65S3) [5**Green Gobbler Fruit Fly Killer+ - Kills Fruit Flies Drain Flies & Sewer Flies Gel Treatment for Use in Sinks & Pipes - Safe for Septic Systems 32oz**Green Gobbler**$13.58**4.0★14,221 rev](https://www.amazon.com/dp/B07CVMMDNQ)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Natures Dome Drain Fly Killer Gel | Kills & Prevents Drain Flies & Fruit Flies | Natural Plant-Based Fly Killer Treatment Indoor for Sinks & Pipes | Safe for Septic Systems | 32 Oz**NATURE'S DOME**$16.40**37 rev8mo ago](https://www.amazon.com/dp/B0G1ZBJPMJ) [**TERRO Drain Insect Killer 1-Pack Foam Treatment for Indoor Infestations**Terro**$16.01**1,134 rev1y ago](https://www.amazon.com/dp/B0F2VX1PRC) [**Drain Fly Killer Powder Eliminates Drain Flies & Sewer Flies in Drains Sinks Showers Fast-Acting Treatment - Septic Safe & Made in USA**Accelerator by Dr. Pooper**$39.82**461 rev1y ago](https://www.amazon.com/dp/B0F26Y65S3) [**Green Gobbler Fruit Fly Killer+ - Kills Fruit Flies Drain Flies & Sewer Flies Gel Treatment for Use in Sinks & Pipes - Safe for Septic Systems 32oz - Up to 8 USES (2 Pack)**Green Gobbler**$25.09**14,221 rev1y ago](https://www.amazon.com/dp/B0DBP1R4GV) [**Fruit Fly Drain Treatment | Drain Fly Eliminator | Eliminates Gnats Sewer Flies and More - Works in All Drains - 64 Fl Oz**Eco Strong**$24.88**4,779 rev3y ago](https://www.amazon.com/dp/B0C6J94KVP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Natures Dome Drain Fly Killer Gel | Kills & Prevents Drain Flies & Fruit Flies | Natural Plant-Based Fly Killer Treatment Indoor for Sinks & Pipes | Safe for Septic Systems | 32 Oz**NATURE'S DOME**$16.40**4.1★**▲ 120%**](https://www.amazon.com/dp/B0G1ZBJPMJ) [**Fruit Fly Drain Treatment | Drain Fly Eliminator | Eliminates Gnats Sewer Flies and More - Works in All Drains - 64 Fl Oz**Eco Strong**$24.88**4.2★**▲ 27%**](https://www.amazon.com/dp/B0C6J94KVP) [**Fly-Zyme Highly Concentrated Enzyme Drain Cleaner for Pipes Drain Gel for Fruit Flies Organic Waste Degrader & Odor Neutralizer 32 fl oz Pack of 2**Kinzua Environmental**$25.41**4.1★**▲ 24%**](https://www.amazon.com/dp/B0CDNCQFYS) [**Drain Fly Killer Powder Eliminates Drain Flies & Sewer Flies in Drains Sinks Showers Fast-Acting Treatment - Septic Safe & Made in USA**Accelerator by Dr. Pooper**$39.82**4.1★**▲ 17%**](https://www.amazon.com/dp/B0F26Y65S3) [**Fly-Zyme Highly Concentrated Enzyme Drain Cleaner for Pipes Drain Gel for Fruit Flies Organic Waste Degrader & Odor Neutralizer 32 fl oz**Kinzua Environmental**$17.76**4.1★**▲ 14%**](https://www.amazon.com/dp/B07DFSGMY2)
**~~View all trending →~~**
## **Reviews**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Pest/Insect Control**32%
*“Kills bugs”*
**Quality-Overall**11%
*“Great product and results”*
**Ease Of Use**9%
*“easy to dispose”*
**Advertised Vs Actual Product**9%
*“Exactly as advertised”*
**Smell**6%
*“Clean smell”*
**Value For Money**5%
*“Worth every cent”*
**Efficiency**4%
*“Effective”*
**Ease Of Cleaning**2%
*“clean”*
**Functionality-Overall**2%
*“WORKS OK,”*
**Instructions/User Manual/Troubleshooting**2%
*“The directions are plain simple”*
### **What buyers complain about **
**Pest/Insect Control**31%
*“Doesnt work for flies”*
**Functionality-Overall**28%
*“It barely works”*
**Value For Money**11%
*“Kind of expensive tho”*
**Quality-Overall**3%
*“Poor quality”*
**Durability**2%
*“short lived”*
**Instructions/User Manual/Troubleshooting**2%
*“Its a little hard to follow the directions”*
**Smell**2%
*“Awful smell”*
**Advertised Vs Actual Product**1%
*“Very misleading advertisement”*
**Spray/Flow**1%
*“No Spray”*
**Adhesion/Stickiness**1%
*“how sticky the pads are”*
### **Top return reasons **
**Functionality-Overall**31%
**Pest/Insect Control**20%
**Value For Money**10%
**Advertised Vs Actual Product**9%
**Size-Overall**6%
**Defective Material/Parts**6%
**Leak-Proof**3%
**Adhesion/Stickiness**2%
**Product Condition**2%
**Brightness/Shine/Glow**2%
## **Common questions**
- **Is drain fly killer profitable to sell on Amazon United States?**
- The niche generates $3.6M/yr across 16 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +150.0%. Flapen's verdict: Launch it (72/100).
- **How competitive is the drain fly killer niche?**
- 10 brands and 30 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 93% of demand.
- **What do buyers complain about in drain fly killer?**
- Top complaints mined from reviews: Pest/Insect Control, Functionality-Overall, Value For Money. The return rate is 0.9%.
- **When does demand for drain fly killer peak?**
- Demand peaks in Jun–Jul–Oct; the busiest month runs 4.6× the quietest.
- **What does it cost to enter the drain fly killer niche?**
- Listings span $13.58–$59.55; the average listing price is $27.54 (sweet spot $15–$100). The average incumbent carries 9,791 reviews — the moat a new listing must climb.
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