Acid
PassAcid scores 71 out of 100, a Pass. Shoppers spend an estimated $1.9M a year here, search demand grew +116.5% this quarter, and an estimated 0.3% of orders come back.
- Flapen Score
- 71 / 100Top 5% of 8,839 Patio, Lawn & Garden niches · +15 vs the category median of 5671
- Market size
- $1.9M/yr767K searches / yr
- 90-day growth
- +116.5%search demand this quarter
- Competition
- 58%top-5 click share · 12 brands · 84 sellers
Flapen Score
Acid against its category
The dotted line is the Patio, Lawn & Garden average. Past it, Acid is stronger. Inside it, weaker.
Market
The Acid market on Amazon at a glance
Shoppers on Amazon United States searched for Acid 767K times last year and spent an estimated $1.9M. The top 5 brands take 79% of clicks. Demand peaks in May–Jun–Jul. Flapen scores it 71 out of 100, a Pass.
01 · Demand
An estimated 7.3% of those searches ended in a purchase.
Shoppers searched for this 767K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 7.3% of those searches ended in a purchase. Searches in the last 90 days moved +116.5% against the 90 days before. Searches, conversion and average price together put the market at an estimated $1.9M a year.
- Searches, last 12 months
- 767K
- Growth, 90 days vs prior 90
- +116.5%
- Conversion, latest week
- 7.3%
- Market size, estimated
- $1.9Ma year
- Peak month
- June6.3× the quietest month
- Top search term
- muriatic acid283K searches a year
02 · Price
A sale here is worth $34.88.
Listings sell for $34.88 on average, from $9.16 to $92.48. Amazon reports units sold in ranges. This niche sold 60K to 80K a year. The average listing sells 4,000 to 5,000 of them. At $34.88 that is $140K to $174K a year per listing.
- Average price
- $34.88inside the $15 to $100 sweet spot
- Price range
- $9.16–$92.48
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 60K–80K
- Units per listing a year
- 4,000–5,000
- Revenue per listing a year
- $140K–$174K
- Returns
- 0.3%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
89% of listings pay for placement with sponsored ads. 47% ship with Prime. On an average day, 0.5% of listings are out of stock. The average listing ranks #56 within Cleaning Tools & Chemicals. It carries 1,722 reviews at 4.59 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 89%
- Prime listings
- 47%
- Out of stock, average day
- 0.5%
- Average rank
- #56in Cleaning Tools & Chemicals
- Average rating
- 4.59 starsAmazon United States average 4.42 stars
- Average reviews
- 1,722per listing
- Listings tracked
- 19
04 · Newcomers
3 of last year's 4 launches cleared the first-year sales bar.
4 products launched here in the last 12 months. 3 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 79 months on average, so the names here are established.
- Launched, last 12 months
- 4
- Successful launches
- 3Amazon's first-year sales bar
- Average brand age
- 79 months
Products
Top Acid 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
CPDI Champion 4-Pack Acidblue Muriatic Acid for Swimming Pools & Spas 1 Gallon Each - Low-Fume pH Stabilizer & Cleaner for Concrete & Masonry Surfaces Clears Rust & Scale Build-Up
- Price
- $58.19
- Rating
- 4.6/5
- Reviews
- 839
- Age
- 5y ago

Clorox Pool&Spa Swimming Pool pH Down Lowers pH Protects Against Eye and Skin Irritation 5LB (Pack of 1)
- Price
- $9.16
- Rating
- 4.7/5
- Reviews
- 7,613
- Age
- 6y ago

EZ Pools Muriatic Acid for Swimming Pools & Spas Pack of 4 Gallons Lowers pH Muriatic Acid for Pools (HCL) pH Reducer for Water Balancing
- Price
- $84.47
- Rating
- 4.8/5
- Reviews
- 78
- Age
- 2y ago

Muriatic Acid for Swimming Pools & Spas Removes Mortar from Bricks - 90% Low-Fume pH Stabilizer & Cleaner for Concrete & Masonry Surfaces Clears Rust & Scale Build-Up - Ready to Use (1 Gallon)
- Price
- $10.92
- Rating
- 4.4/5
- Reviews
- 10
- Age
- 2mo ago

Sunnyside Corporation 71032 1-Quart Muriatic Acid
- Price
- $16.73
- Rating
- 4.7/5
- Reviews
- 183
- Age
- 16y ago
Trending
estimated 90-day click momentum
Muriatic Acid for Swimming Pools - Lower pH for Swimming Pools - Crown Muriatic Acid 1 Gal - Concrete Rust Remover - Hydrochloric Acid for Rust Scale & Stains - Available with Omni Depot Gloves
- Price
- $29.88
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 1mo ago

Muriatic Acid for Swimming Pools & Spas Removes Mortar from Bricks - 90% Low-Fume pH Stabilizer & Cleaner for Concrete & Masonry Surfaces Clears Rust & Scale Build-Up - Ready to Use (1 Gallon)
- Price
- $10.92
- Rating
- 4.4/5
- Reviews
- 10
- Age
- 2mo ago

MAV AquaDoc pH Down for Pools - 5lb - Sodium Bisulfate pH Decreaser for Pool & Alkalinity Decreaser - Easy Dissolving Dry Acid Pool Chemicals Made in the USA
- Price
- $25.59
- Rating
- 4.5/5
- Reviews
- 117
- Age
- 1y ago

OMNI DEPOT Low Fume Concrete Etcher Klean Strip Green Muriatic Acid Heavy Duty Concrete Brick & Masonry Cleaner for Stains Rust & Etching comes Protective Gloves 1 Gallon
- Price
- $31.18
- Rating
- 4.6/5
- Reviews
- 6
- Age
- 5mo ago

HTH Pool Care pH Down Lowers pH Swimming Pool Chemical 5 Lbs
- Price
- $12.90
- Rating
- 4.7/5
- Reviews
- 613
- Age
- 4y ago
Newest
by launch date
Muriatic Acid for Swimming Pools - Lower pH for Swimming Pools - Crown Muriatic Acid 1 Gal - Concrete Rust Remover - Hydrochloric Acid for Rust Scale & Stains - Available with Omni Depot Gloves
- Price
- $29.88
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 1mo ago

Muriatic Acid for Swimming Pools & Spas Removes Mortar from Bricks - 90% Low-Fume pH Stabilizer & Cleaner for Concrete & Masonry Surfaces Clears Rust & Scale Build-Up - Ready to Use (1 Gallon)
- Price
- $10.92
- Rating
- 4.4/5
- Reviews
- 10
- Age
- 2mo ago

(4 Gallons) - Muriatic Acid for Swimming Pools & Spas Removes Mortar from Bricks - 90% Low-Fume pH Stabilizer & Cleaner for Concrete & Masonry Surfaces Clears Rust & Scale Build-Up - Ready to Use
- Price
- $43.98
- Rating
- 4.9/5
- Reviews
- 13
- Age
- 3mo ago

OMNI DEPOT Low Fume Concrete Etcher Klean Strip Green Muriatic Acid Heavy Duty Concrete Brick & Masonry Cleaner for Stains Rust & Etching comes Protective Gloves 1 Gallon
- Price
- $31.18
- Rating
- 4.6/5
- Reviews
- 6
- Age
- 5mo ago

MAV AquaDoc pH Down for Pools - 5lb - Sodium Bisulfate pH Decreaser for Pool & Alkalinity Decreaser - Easy Dissolving Dry Acid Pool Chemicals Made in the USA
- Price
- $25.59
- Rating
- 4.5/5
- Reviews
- 117
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 58% of clicks. Leaders hold, but buyers still shop past them.
Brands
12 rising
Sellers
84
Est. top-5 brand share
79%
Top 20: 100%
Est. top-5 click share
58%
Top 20: 100%
Open market
17%
- CPDI24%
- EZ POOLS19%
- HOANK14%
- CLOROX Pool&Spa14%
- Sunnyside Corporation8%
- ACID Magic4%
- Open — no brand owns it (6 brands, 17%)
Demand
Acid search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: May, Jun, Jul · busiest ÷ quietest = 6.3×
Search terms
Top Acid search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- muriatic acid283K/yr
- muriatic acid for swimming pools168K/yr
- muriatic acid for pool47K/yr
- acid86K/yr
- pool acid30K/yr
- muriatic acid for pools14K/yr
- muratic acid16K/yr
- muriatic acid for shells12K/yr
- pool acid muriatic 1 gallon14K/yr
- pool muriatic acid10K/yr
Reviews and returns
What reviews say buyers love and hate about Acid
We read the reviews and the return reasons for every product selling here.
“Stopped working”
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 Acid 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









