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.

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.

Growth

Incredible+215.1%

90-day search growth — must beat 0% to launch

Conversion

Incredible17.4%

search→purchase rate — share of searches ending in a sale

Returns

Incredible0.4%

return rate — above 5% kills the launch gate

Avg price

Incredible$23.22

avg listing price — sweet spot $15–$100

Review moat

Great268.8

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

Bad4.6★

avg incumbent rating — lower means beatable quality

Market size

Bad$81K

$81K/yr · 20K searches

Competition

Bad88%

top-5 click share — a locked-up shelf

Brand share

Bad98%

top-5 brand share — brand-locked demand

Signals Trending

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

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

Top-5 brand share

98%

Top 20: 100%

Top-5 click share

88%

Top 20: 100%

Open market

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.

Peak months: May, Jun, Jul, Aug · busiest ÷ quietest = 7.1×

Open 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.

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

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$16.074.6★410 rev

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$17.084.6★838 rev

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$37.164.6★838 rev

Bilge Cleaner for Boats - Highly Effective Removing Dirt Grime Emulsifying Oil and more. Easy to use Fast Results (One Gallon)

NORTHWEST ENTERPRISES$31.244.4★78 rev

STAR BRITE Bilge Cleaner - 1 GAL (080500N)

STAR BRITE$34.844.6★410 rev

Newest

by launch date

Bioesque Marine Heavy Duty Bilge Cleaner Concentrate 32 Fluid Ounce (Pack of 1)

Bioesque$13.4830 rev

1y ago

RMR Marine Bilge Cleaner Professional Strength Cleaning Wash Odor Remover & Protectant Safe & Sustainable Boat Maintenance Supplies 24 Ounce Spray

RMR Brands$10.9131 rev

1y ago

Bioesque Marine Heavy Duty Bilge Cleaner Concentrate 1 Gallon (Pack of 1)

Bioesque$28.4030 rev

2y ago

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$28.5815 rev

2y ago

Bilge Cleaner for Boats - Highly Effective Removing Dirt Grime Emulsifying Oil and more. Easy to use Fast Results (One Gallon)

NORTHWEST ENTERPRISES$31.2478 rev

3y ago

What buyers say about bilge cleaner

What buyers praise and complain about, mined from review topics.

What buyers love

Smell22%

“smells nice too”

Ease Of Cleaning17%

“It has a strong cleaning effect”

Ease Of Use13%

“Very easy to use”

Value For Money9%

“which makes it a good value for the money”

Advertised Vs Actual Product5%

“Works as advertized”

De-Grease5%

“It cuts through grease, fuel, oil and grime and worked far better than I expected”

Quality-Overall4%

“Overall, it did a solid job and made a messy cleaning task much easier”

Efficiency4%

“It is effective”

Eco Friendliness3%

“Biodegradable and easy to use”

Leak-Proof3%

“the jug didn't leak”

What buyers complain about

Smell16%

“The stuff smells a little odd”

Value For Money14%

“for the money I was upset”

Ease Of Cleaning5%

“though it doesnt do a lot of cleaning by just soaking either”

Instructions/User Manual/Troubleshooting5%

“The directions are a little vague”

Top return reasons

Leak-Proof38%

Ease Of Cleaning8%

Smell8%

Spray/Flow8%

Product Condition8%

Advertised Vs Actual Product8%

Value For Money8%

Functionality-Overall8%

Moist/Dry4%

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.