clr pro
Worth a lookShows searches that convert (20.6% search→purchase), but brand-locked demand (top 5 brands take 100% of clicks) keeps it on the watch list.
Conversion
Incredible20.6%search→purchase rate — share of searches ending in a sale
Returns
Incredible0.3%return rate — above 5% kills the launch gate
Market size
Incredible$3.4M$3.4M/yr · 1.3M searches
Avg price
Good$12.64avg listing price — sweet spot $15–$100
Price range
Okay$4.25–$24.85cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Review moat
Okay3,246.18avg incumbent reviews — the moat a new listing must climb
Growth
Bad-0.3%90-day search growth — must beat 0% to launch
Competition
Bad78%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, clr pro is a $3.4M/yr Amazon United States market (1.3M searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr–May–Jun. Verdict: Worth a look — 52/100.
Data updated Jul 21, 2026 · scored weekly · How we score niches
clr pro market data
- Units sold / yr
- 250K–300K
- avg 20,000–25,000/product
- Revenue / yr
- $3.2M–$3.8M
- units × avg price
- Conversion rate
- 20.6%
- Avg BSR
- #127
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 64%
- Out of stock
- 0.0%
- Avg brand age
- 67 months
- Avg seller age
- 150 days
Competition & brand share
The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.Brands
3 falling
Sellers
73
Top-5 brand share
100%
Top 20: 100%
Top-5 click share
78%
Top 20: 100%
Open market
0%
- CLR86%
- Lime-A-Way12%
- Zep2%
- Open — no brand owns it (0%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -0.3% search growth over the last 90 days.Peak months: Apr, May, Jun · busiest ÷ quietest = 2.9×
Top clr pro search terms
- clr475K/yr
- clr calcium lime & rust remover280K/yr
- lime away174K/yr
- crl49K/yr
- clr cleaner60K/yr
- lime away cleaner hard water stain24K/yr
- lime away toilet bowl cleaner50K/yr
- limescale remover35K/yr
- calcium lime rust remover24K/yr
- clr toilet bowl cleaner28K/yr
Top clr pro 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 11 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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 Calcium Lime & Rust Remover Blasts Calcium Dissolves Lime Deposits Zaps Stubborn Rust Stains and Hard Water Deposits 80 Ounce Bottle
CLR$16.654.5★2,246 rev
CLR Pro Calcium Lime & Rust Remove - 1 Gallon
CLR$24.854.6★9,421 rev
Lime-A-Way Hard Water Stain Remover Spray Removes Lime Calcium & Rust in Seconds Bathroom Cleaner 22 fl oz
Lime-A-Way$4.254.5★7,513 rev
CLR Brands Calcium Lime & Rust Remover Free & Clear No Dyes or Fragrances Gentle Lime and Bathroom Descaler Removes Hard Water Stains and Rust Deposits 42 Oz Bottle
CLR$15.764.6★1,237 rev
Newest
by launch date
CLR Brands 2X Calcium Lime and Rust Remover - 32 oz Trigger
CLR$16.42189 rev
CLR Brands 2X Calcium Lime and Rust Remover - 28oz Jug
CLR$14.44189 rev
CLR Brands Calcium Lime & Rust Remover with Cling 22 oz. Spray Bottle Adheres to Hard-to-Reach Surfaces Blasts Calcium Dissolves Lime Deposits Zaps Stubborn Rust Stains and Hard Water Deposits
CLR$15.41319 rev
CLR Brands Calcium Lime & Rust Remover Free & Clear No Dyes or Fragrances Gentle Lime and Bathroom Descaler Removes Hard Water Stains and Rust Deposits 26 Oz Bottle (Pack of 1)
CLR$14.91566 rev
CLR Brands Calcium Lime & Rust Remover Free & Clear No Dyes or Fragrances Gentle Lime and Bathroom Descaler Removes Hard Water Stains and Rust Deposits 42 Oz Bottle
CLR$15.761,237 rev
Trending
90-day click momentumCLR Brands 2X Calcium Lime and Rust Remover - 28oz Jug
CLR$14.444.4★
CLR Calcium Lime & Rust Remover Blasts Calcium Dissolves Lime Deposits Zaps Stubborn Rust Stains and Hard Water Deposits 80 Ounce Bottle
CLR$16.654.5★
CLR Brands 2X Calcium Lime and Rust Remover - 32 oz Trigger
CLR$16.424.4★
Lime-A-Way Hard Water Stain Remover Spray Removes Lime Calcium & Rust in Seconds Bathroom Cleaner 22 fl oz
Lime-A-Way$4.254.5★
CLR Brands Calcium Lime & Rust Remover with Cling 22 oz. Spray Bottle Adheres to Hard-to-Reach Surfaces Blasts Calcium Dissolves Lime Deposits Zaps Stubborn Rust Stains and Hard Water Deposits
CLR$15.414.5★
What buyers say about clr pro
What buyers praise and complain about, mined from review topics.What buyers love
“Very good for cleaning”
“This is a very effective cleaner”
“Excellent product”
“Works as advertised”
“Good price”
“Easy to use”
“it looked brand new”
“So Clean Smelling”
“It is amazing to remove calcium”
“It definitely has a strong order that lasts a long time”
What buyers complain about
“Did not work”
“Rust”
“very strong smell”
“Had bathtub stains”
“It leaked”
“Don't recommend for this type of cleaning”
“A bit expensive”
“Didn't even touch the calcium”
“it does nothing that it describes”
“not as good as I expected”
Top return reasons
Common questions
- Is clr pro profitable to sell on Amazon United States?
- The niche generates $3.4M/yr across 11 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -0.3%. Flapen's verdict: Worth a look (52/100).
- How competitive is the clr pro niche?
- 3 brands and 73 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 100% of demand.
- What do buyers complain about in clr pro?
- Top complaints mined from reviews: Functionality-Overall, Rusts/Corrodes, Smell. The return rate is 0.3%.
- When does demand for clr pro peak?
- Demand peaks in Apr–May–Jun; the busiest month runs 2.9× the quietest.
- What does it cost to enter the clr pro niche?
- Listings span $4.25–$24.85; the average listing price is $12.64 (sweet spot $15–$100). The average incumbent carries 3,246 reviews — the moat a new listing must climb.