Barnacle Buster
MaybeAn estimated 0.2% of orders come back. But the top 5 brands take 94% of clicks, so Barnacle Buster is a Maybe.
- Flapen Score
- 61 / 100Top 9% of 8,101 Sports & Outdoors niches · +14 vs the category median of 4761
- Market size
- $95K/yr22K searches / yr
- 90-day growth
- +69.7%search demand this quarter
- Competition
- 80%top-5 click share · 7 brands · 35 sellers
Flapen Score
Barnacle Buster against its category
The dotted line is the Sports & Outdoors average. Past it, Barnacle Buster is stronger. Inside it, weaker.
Market
The Barnacle Buster market on Amazon at a glance
Shoppers on Amazon United States searched for Barnacle Buster 22K times last year and spent an estimated $95K. The top 5 brands take 94% of clicks. Demand peaks in Jun–Jul. Flapen scores it 61 out of 100, a Maybe.
01 · Demand
An estimated 8.2% of those searches ended in a purchase.
Shoppers searched for this 22K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 8.2% of those searches ended in a purchase. Searches in the last 90 days moved +69.7% against the 90 days before. Searches, conversion and average price together put the market at an estimated $95K a year.
- Searches, last 12 months
- 22K
- Growth, 90 days vs prior 90
- +69.7%
- Conversion, latest week
- 8.2%
- Market size, estimated
- $95Ka year
- Peak month
- July3.1× the quietest month
- Top search term
- barnacle buster17K searches a year
02 · Price
A sale here is worth $52.73.
Listings sell for $52.73 on average, from $22.95 to $100.61. Amazon reports units sold in ranges. This niche sold 2K to 2K a year. The average listing sells 100 to 250 of them. At $52.73 that is $5K to $13K a year per listing.
- Average price
- $52.73inside the $15 to $100 sweet spot
- Price range
- $22.95–$100.61
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 2K–2K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $5K–$13K
- Returns
- 0.2%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
92% of listings pay for placement with sponsored ads. 50% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #623 within Maintenance Supplies. It carries 102 reviews at 3.77 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 92%
- Prime listings
- 50%
- Out of stock, average day
- 0.0%
- Average rank
- #623in Maintenance Supplies
- Average rating
- 3.77 starsAmazon United States average 4.42 stars
- Average reviews
- 102per listing
- Listings tracked
- 12
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 102 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 102 months
Products
Top Barnacle Buster products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 24, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Marine Growth Buster 1 Gallon Concentrate
- Price
- $98.45
- Rating
- 4.6/5
- Reviews
- 171
- Age
- 17y ago

Quality Chemical Barnacle Buster Hull Cleaner for Boats - On/Off Boat Hull Cleaner - Boat Bottom - Star Cleaning Performance - 128 oz (Pack of 1)
- Price
- $37.29
- Rating
- 4.1/5
- Reviews
- 354
- Age
- 9y ago

Mainstream Marine Descaler Solution Multi-Purpose Descaling Solvent Bio-Growth Marine Boat Engine Flush and A/C Systems 1 Gallon
- Price
- $49.27
- Rating
- 4.3/5
- Reviews
- 64
- Age
- 8y ago

Trac Ecological 1206-MQ Barnacle Buster Concentrate - 1 Quart Lime
- Price
- $39.35
- Rating
- 4.2/5
- Reviews
- 100
- Age
- 17y ago

STAR BRITE Marine Descaling Fluid Concentrate 1 Gallon - Engine Scale & Deposit Remover Safe for Seals & Gaskets (083900)
- Price
- $52.50
- Rating
- 4.8/5
- Reviews
- 48
- Age
- 5y ago
Trending
estimated 90-day click momentum
RYDLYME Marine Biodegradable Descaler (1 Gallon Bottle)
- Price
- $40.76
- Rating
- 4.7/5
- Reviews
- 337
- Age
- 8y ago

Mainstream Marine Descaler Solution Multi-Purpose Descaling Solvent Bio-Growth Marine Boat Engine Flush and A/C Systems 1 Quart
- Price
- $24.79
- Rating
- 4.3/5
- Reviews
- 64
- Age
- 5y ago

Mainstream Marine Descaler Solution Multi-Purpose Descaling Solvent Bio-Growth Marine Boat Engine Flush and A/C Systems 1 Gallon
- Price
- $49.27
- Rating
- 4.3/5
- Reviews
- 64
- Age
- 8y ago

MA5x Eco-Marine Barnacle Off Concentrate | Barnacle Buster Remover and Cleaner for Boats | Biodegradable Formula | Shell and Algae Remover | 32oz Bottle | Pack of 1
- Price
- $22.95
- Rating
- 3.0/5
- Reviews
- 18
- Age
- 2y ago

Trac Ecological 1206-MQ Barnacle Buster Concentrate - 1 Quart Lime
- Price
- $39.35
- Rating
- 4.2/5
- Reviews
- 100
- Age
- 17y ago
Newest
by launch date
MA5x Eco-Marine Barnacle Off Concentrate | Barnacle Buster Remover and Cleaner for Boats | Biodegradable Formula | Shell and Algae Remover | 32oz Bottle | Pack of 1
- Price
- $22.95
- Rating
- 3.0/5
- Reviews
- 18
- Age
- 2y ago

MA5x Eco-Marine Barnacle Off Concentrate | Barnacle Buster Remover and Cleaner for Boats | Biodegradable Formula | Shell and Algae Remover | Gallon | Pack of 1
- Price
- $51.52
- Rating
- 3.0/5
- Reviews
- 18
- Age
- 2y ago

Trac Ecological 1208mg Barnacle Buster Marine Growth Remover
- Price
- $60.05
- Rating
- 1.3/5
- Reviews
- 4
- Age
- 2y ago

Mainstream Marine Descaler Solution Multi-Purpose Descaling Solvent Bio-Growth Marine Boat Engine Flush and A/C Systems 1 Quart
- Price
- $24.79
- Rating
- 4.3/5
- Reviews
- 64
- Age
- 5y ago

STAR BRITE Marine Descaling Fluid Concentrate 1 Gallon - Engine Scale & Deposit Remover Safe for Seals & Gaskets (083900)
- Price
- $52.50
- Rating
- 4.8/5
- Reviews
- 48
- Age
- 5y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 80% of clicks. A locked shelf that new listings rarely crack.
Brands
7 flat
Sellers
35
Est. top-5 brand share
94%
Top 20: 100%
Est. top-5 click share
80%
Top 20: 100%
Open market
2%
- Trac Ecological38%
- Quality Chemical24%
- Mainstream Marine21%
- STAR BRITE7%
- Corrosion Technologies4%
- MA5x CLEANING SUPPLIES4%
- Open — no brand owns it (1 brand, 2%)
Demand
Barnacle Buster search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Jun, Jul · busiest ÷ quietest = 3.1×
Search terms
Top Barnacle Buster search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- barnacle buster17K/yr
- barnacle remover3K/yr
- barnacle buster concentrate3K/yr
Reviews and returns
What reviews say buyers love and hate about Barnacle Buster
We read the reviews and the return reasons for every product selling here.
“Overpriced and doesn't do much”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
17 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Barnacle Buster questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









