delimer
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Avg price
Incredible$27.55avg listing price — sweet spot $15–$100
Conversion
Great9.3%search→purchase rate — share of searches ending in a sale
Price range
Great$4.25–$77.77cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Growth
Okay+8.6%90-day search growth — must beat 0% to launch
Review moat
Bad4,112avg incumbent reviews — the moat a new listing must climb
Market size
Bad$80K$80K/yr · 31K searches
Competition
Bad91%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, delimer is a $80K/yr Amazon United States market (31K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 43/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
delimer market data
- Units sold / yr
- 4K–5K
- avg 500–750/product
- Revenue / yr
- $110K–$138K
- units × avg price
- Conversion rate
- 9.3%
- Avg BSR
- #95
- Page quality
- 0%
- Prime
- 63%
- Sponsored
- 75%
- Out of stock
- 0.0%
- Avg brand age
- 83 months
- Avg seller age
- 154 days
Competition & brand share
The top 5 products capture 91% of clicks — a locked-up shelf that new listings rarely crack.Brands
4 falling
Sellers
86
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
91%
Top 20: 100%
Open market
0%
- Zep68%
- CLR23%
- Zep Professional6%
- Lime-A-Way2%
Top delimer search terms
- zep calcium lime and rust remover14K/yr
- delimer6K/yr
- zep rust remover4K/yr
- water scale remover3K/yr
- zep lime and calcium remover3K/yr
- zep clr2K/yr
Top delimer 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.
All 8 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Enforcer ZUCAL32 32-Ounce Zep Calcium Lime and Rust Remover
Zep$4.824.4★916 rev

GAL Zep Rust Remover
Zep$38.764.4★15 rev

CLR Brands Lime & Rust Remover Blasts Calcium Dissolves Lime Zaps Stubborn Rust Stains and Hard Water 22 Ounce Spray Bottle (Pack of 1)
CLR$5.144.5★3,881 rev

CLR Pro Calcium Lime & Rust Remove - 1 Gallon
CLR$24.854.6★9,421 rev

Zep Industrial Calcium and Lime Remover - 128 oz (Case of 4) 1041491 - Pro Grade Formula Safe on Stainless Steel Aluminum Glass Plastic and Ceramic Surfaces
Zep Professional$77.774.4★50 rev
Newest
by launch date
CLR Brands Lime & Rust Remover Blasts Calcium Dissolves Lime Zaps Stubborn Rust Stains and Hard Water 22 Ounce Spray Bottle (Pack of 1)
CLR$5.143,881 rev

Zep Concentrated Calcium Lime and Rust Remover - 32 oz (Case of 12) - ZUCAL32 - Your Solution to Stubborn Calcium Lime and Rust Stain Removal with Ease
Zep$59.6847 rev

Zep Acidic Toilet Bowl Cleaner 32 Oz
Zep$5.1011,053 rev

Lime-A-Way Hard Water Stain Remover Spray Removes Lime Calcium & Rust in Seconds Bathroom Cleaner 22 fl oz
Lime-A-Way$4.257,513 rev

Zep Industrial Calcium and Lime Remover - 128 oz (Case of 4) 1041491 - Pro Grade Formula Safe on Stainless Steel Aluminum Glass Plastic and Ceramic Surfaces
Zep Professional$77.7750 rev
Trending
90-day click momentum
GAL Zep Rust Remover
Zep$38.764.4★

CLR Brands Lime & Rust Remover Blasts Calcium Dissolves Lime Zaps Stubborn Rust Stains and Hard Water 22 Ounce Spray Bottle (Pack of 1)
CLR$5.144.5★

CLR Pro Calcium Lime & Rust Remove - 1 Gallon
CLR$24.854.6★

Zep Acidic Toilet Bowl Cleaner 32 Oz
Zep$5.104.7★

Enforcer ZUCAL32 32-Ounce Zep Calcium Lime and Rust Remover
Zep$4.824.4★
What buyers say about delimer
What buyers praise and complain about, mined from review topics.What buyers love
“this cleans really well”
“Good quality squeeze bottle”
“It works great”
“Great Value”
“Works as advertised”
“Pleasant smell”
“Easy to use”
“Looks brand new”
“Got rid of stains that have been there for many years”
“Effective”
What buyers complain about
“Didn't work for me”
“Rust”
“very strong smell”
“Had bathtub stains”
“Don't recommend for this type of cleaning”
“It leaked”
“it does nothing that it describes”
“Didn't even touch the calcium”
“not as good as I expected”
“Waste of money”
Top return reasons
Common questions
- Is delimer profitable to sell on Amazon United States?
- The niche generates $80K/yr across 8 tracked products. 90-day search growth is +8.6%. Flapen's verdict: Skip it (43/100).
- How competitive is the delimer niche?
- 4 brands and 86 sellers compete. The top 5 products take 91% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in delimer?
- Top complaints mined from reviews: Functionality-Overall, Rusts/Corrodes, Smell. The return rate is 0.1%.
- What does it cost to enter the delimer niche?
- Listings span $4.25–$77.77; the average listing price is $27.55 (sweet spot $15–$100). The average incumbent carries 4,112 reviews — the moat a new listing must climb.