---
title: "Bilge Cleaner — $81K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/sports-outdoors/bilge-cleaner"
last_updated: "2026-08-11T01:10:44.292Z"
locale: en
meta:
description: "Niche score 55/100 · $81K/yr market · 20K searches/yr. Brand-locked demand (top 5 brands take 98% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 55/100 · $81K/yr market · 20K searches/yr. Brand-locked demand (top 5 brands take 98% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Bilge Cleaner — $81K/yr Amazon US Niche (2026) - Flapen"
---
# **bilge cleaner**
**Worth a look**
Shows demand growing +215.1% this quarter, but brand-locked demand (top 5 brands take 98% of clicks) keeps it on the watch list.
Market size 20Growth 98Conversion 98Competition 10Returns 98Price range 83Avg price 95Brand share 4Review moat 87Quality gap 24
**Growth**
**Incredible****+215.1%**
90-day search growth — must beat 0% to launch
**Conversion**
**Incredible****17.4%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$23.22**
avg listing price — sweet spot $15–$100
**Review moat**
**Great****268.8**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Great****$10.91–$37.16**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$81K**
$81K/yr · 20K searches
**Competition**
**Bad****88%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****98%**
top-5 brand share — brand-locked demand
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)")
According to Flapen's Amazon United States niche tracking, bilge cleaner is a $81K/yr Amazon United States market (20K searches/yr). The top 5 brands hold 98% of demand. Demand peaks in May–Jun–Jul–Aug. Verdict: Worth a look — 55/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **bilge cleaner market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$70K–$93K**
- units × avg price
- **Conversion rate**
- **17.4%**
- **Avg BSR**
- **#539**
- **Page quality**
- **0%**
- **Prime**
- **80%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.5%**
- **Avg brand age**
- **109 months**
- **Avg seller age**
- **175 days**
## **Competition & brand share**
The top 5 products capture 88% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **▼falling
**Sellers**
**60**
**Top-5 brand share**
**98%**
Top 20: 100%
**Top-5 click share**
**88%**
Top 20: 100%
**Open market**
**0%**
- STAR BRITE80% - NORTHWEST ENTERPRISES8% - Bioesque6% - Booyah Clean3% - MA5x CLEANING SUPPLIES2% - RMR Brands2%
## **Demand & seasonality**
Weekly Amazon search volume, last 98 weeks — +215.1% search growth over the last 90 days.
900700Spike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 7.1×
[**Open Trend **](https://flapen.com/research/us/sports-outdoors/bilge-cleaner/trend)
## **Top bilge cleaner 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%$16K30%$24K40%$32K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 10 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**STAR BRITE Heavy Duty Bilge Cleaner Easy to Use Pour In Run Boat Pump Out Disperses Sludge and Grime Designed for Use on Bilges Leaves Bilge Odor-Free**STAR BRITE**$16.07**4.6★410 rev](https://www.amazon.com/dp/B0014431W0) [2**STAR BRITE Super Orange Citrus Bilge Cleaner Easy to Use Pour in Run Boat Pump Out Emulsifies Oil Grease and Transmission Fluid Leaving Bilge Clean with a Fresh Citrus Scent**STAR BRITE**$17.08**4.6★838 rev](https://www.amazon.com/dp/B0009PXCEM) [3**STAR BRITE Super Orange Citrus Bilge Cleaner - Simple & Easy to Use - Pour In Run Boat Pump Out - Emulsifies Oil & Fuel - 1 Gal (094400)**STAR BRITE**$37.16**4.6★838 rev](https://www.amazon.com/dp/B00VSXKTWW) [4**Bilge Cleaner for Boats - Highly Effective Removing Dirt Grime Emulsifying Oil and more. Easy to use Fast Results (One Gallon)**NORTHWEST ENTERPRISES**$31.24**4.4★78 rev](https://www.amazon.com/dp/B0BX5GRZN5) [5**STAR BRITE Bilge Cleaner - 1 GAL (080500N)**STAR BRITE**$34.84**4.6★410 rev](https://www.amazon.com/dp/B000XBDJG8)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Bioesque Marine Heavy Duty Bilge Cleaner Concentrate 32 Fluid Ounce (Pack of 1)**Bioesque**$13.48**30 rev1y ago](https://www.amazon.com/dp/B0DH7819DV) [**RMR Marine Bilge Cleaner Professional Strength Cleaning Wash Odor Remover & Protectant Safe & Sustainable Boat Maintenance Supplies 24 Ounce Spray**RMR Brands**$10.91**31 rev1y ago](https://www.amazon.com/dp/B0DB6DNZ7Z) [**Bioesque Marine Heavy Duty Bilge Cleaner Concentrate 1 Gallon (Pack of 1)**Bioesque**$28.40**30 rev2y ago](https://www.amazon.com/dp/B0DTX8Y9QW) [**MA5x Eco-marine Boat Bilge Cleaner Concentrate | Heavy Duty Degreaser for Motor Cabins and Boat Bilge Surfaces | Fresh Citrus Aroma Clean Scent | Gallon | Pack of 1**MA5x CLEANING SUPPLIES**$28.58**15 rev2y ago](https://www.amazon.com/dp/B0CYXPHV95) [**Bilge Cleaner for Boats - Highly Effective Removing Dirt Grime Emulsifying Oil and more. Easy to use Fast Results (One Gallon)**NORTHWEST ENTERPRISES**$31.24**78 rev3y ago](https://www.amazon.com/dp/B0BX5GRZN5)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Booyah Clean Heavy-Duty Bilge Cleaner Removes Hydrocarbons Grime Dirt and Stains to Keep Bilge Clean and Odor Free Meets EPA Safer Choice Direct Release Criteria**Booyah Clean**$14.50**4.8★**▲ 39%**](https://www.amazon.com/dp/B07BB4R5Z3) [**Bioesque Marine Heavy Duty Bilge Cleaner Concentrate 1 Gallon (Pack of 1)**Bioesque**$28.40**4.6★**▲ 27%**](https://www.amazon.com/dp/B0DTX8Y9QW) [**STAR BRITE Heavy Duty Bilge Cleaner Easy to Use Pour In Run Boat Pump Out Disperses Sludge and Grime Designed for Use on Bilges Leaves Bilge Odor-Free**STAR BRITE**$16.07**4.6★**▲ 26%**](https://www.amazon.com/dp/B0014431W0) [**STAR BRITE Super Orange Citrus Bilge Cleaner Easy to Use Pour in Run Boat Pump Out Emulsifies Oil Grease and Transmission Fluid Leaving Bilge Clean with a Fresh Citrus Scent**STAR BRITE**$17.08**4.6★**— 3%**](https://www.amazon.com/dp/B0009PXCEM) [**Bilge Cleaner for Boats - Highly Effective Removing Dirt Grime Emulsifying Oil and more. Easy to use Fast Results (One Gallon)**NORTHWEST ENTERPRISES**$31.24**4.4★**— 4%**](https://www.amazon.com/dp/B0BX5GRZN5)
**~~View all trending →~~**
## **What buyers say about bilge cleaner**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Smell**22%
*“smells nice too”*
**Ease Of Cleaning**17%
*“It has a strong cleaning effect”*
**Ease Of Use**13%
*“Very easy to use”*
**Value For Money**9%
*“which makes it a good value for the money”*
**Advertised Vs Actual Product**5%
*“Works as advertized”*
**De-Grease**5%
*“It cuts through grease, fuel, oil and grime and worked far better than I expected”*
**Quality-Overall**4%
*“Overall, it did a solid job and made a messy cleaning task much easier”*
**Efficiency**4%
*“It is effective”*
**Eco Friendliness**3%
*“Biodegradable and easy to use”*
**Leak-Proof**3%
*“the jug didn't leak”*
### **What buyers complain about **
**Smell**16%
*“The stuff smells a little odd”*
**Value For Money**14%
*“for the money I was upset”*
**Ease Of Cleaning**5%
*“though it doesnt do a lot of cleaning by just soaking either”*
**Instructions/User Manual/Troubleshooting**5%
*“The directions are a little vague”*
### **Top return reasons **
**Leak-Proof**38%
**Ease Of Cleaning**8%
**Smell**8%
**Spray/Flow**8%
**Product Condition**8%
**Advertised Vs Actual Product**8%
**Value For Money**8%
**Functionality-Overall**8%
**Moist/Dry**4%
## **Common questions**
- **Is bilge cleaner profitable to sell on Amazon United States?**
- The niche generates $81K/yr across 10 tracked products. 90-day search growth is +215.1%. Flapen's verdict: Worth a look (55/100).
- **How competitive is the bilge cleaner niche?**
- 6 brands and 60 sellers compete. The top 5 products take 88% of clicks and top 5 brands hold 98% of demand.
- **What do buyers complain about in bilge cleaner?**
- Top complaints mined from reviews: Smell, Value For Money, Ease Of Cleaning. The return rate is 0.4%.
- **When does demand for bilge cleaner peak?**
- Demand peaks in May–Jun–Jul–Aug; the busiest month runs 7.1× the quietest.
- **What does it cost to enter the bilge cleaner niche?**
- Listings span $10.91–$37.16; the average listing price is $23.22 (sweet spot $15–$100). The average incumbent carries 269 reviews — the moat a new listing must climb.
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