Nature 2 Spa Mineral Cartridge for Hot Tub
FailThe top 5 products take 89% of clicks, so Nature 2 Spa Mineral Cartridge for Hot Tub is a Fail.
- Flapen Score
- 48 / 100Ranks 6,657 of 8,839 Patio, Lawn & Garden niches · −8 vs the category median of 5648
- Market size
- $91K/yr13K searches / yr
- 90-day growth
- +8.8%search demand this quarter
- Competition
- 89%top-5 click share · 7 brands · 31 sellers
Flapen Score
Nature 2 Spa Mineral Cartridge for Hot Tub against its category
The dotted line is the Patio, Lawn & Garden average. Past it, Nature 2 Spa Mineral Cartridge for Hot Tub is stronger. Inside it, weaker.
Market
The Nature 2 Spa Mineral Cartridge for Hot Tub market on Amazon at a glance
Shoppers on Amazon United States searched for Nature 2 Spa Mineral Cartridge for Hot Tub 13K times last year and spent an estimated $91K. The top 5 brands take 93% of clicks. Demand peaks in Apr–Sep–Oct. Flapen scores it 48 out of 100, a Fail.
01 · Demand
An estimated 22.9% of those searches ended in a purchase.
Shoppers searched for this 13K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 22.9% of those searches ended in a purchase. Searches in the last 90 days moved +8.8% against the 90 days before. Searches, conversion and average price together put the market at an estimated $91K a year.
- Searches, last 12 months
- 13K
- Growth, 90 days vs prior 90
- +8.8%
- Conversion, latest week
- 22.9%
- Market size, estimated
- $91Ka year
- Peak month
- September5.9× the quietest month
- Top search term
- nature 2 spa mineral sticks for hot tub8K searches a year
02 · Price
A sale here is worth $31.20.
Listings sell for $31.20 on average, from $14.22 to $63.23. Amazon reports units sold in ranges. This niche sold 2K to 3K a year. The average listing sells 100 to 250 of them. At $31.20 that is $3K to $8K a year per listing.
- Average price
- $31.20inside the $15 to $100 sweet spot
- Price range
- $14.22–$63.23
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 2K–3K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $3K–$8K
- Returns
- 0.7%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
88% of listings pay for placement with sponsored ads. 88% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #197 within Cleaning Tools & Chemicals. It carries 380 reviews at 4.55 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 88%
- Prime listings
- 88%
- Out of stock, average day
- 0.0%
- Average rank
- #197in Cleaning Tools & Chemicals
- Average rating
- 4.55 starsAmazon United States average 4.42 stars
- Average reviews
- 380per listing
- Listings tracked
- 8
04 · Newcomers
Brands here are settling in.
The brands on the shelf have sold for 44 months on average, so the names here are settling in.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 44 months
Products
Top Nature 2 Spa Mineral Cartridge for Hot Tub 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
Nature2 Spa Mineral Sanitizer 2 Pack W20750 Multicolor
- Price
- $58.19
- Rating
- 4.7/5
- Reviews
- 535
- Age
- 5y ago

OBMAO Spa Mineral Sticks Hot Tub Mineral Stick Spa Mineral Sticks for Hot Tub with 4 Months Lifetime Universal for Pool&Hot Tub to Keep Water Clear(Yellow 2PCS)
- Price
- $18.58
- Rating
- 4.5/5
- Reviews
- 303
- Age
- 3y ago

Nature2 Spa Mineral Sanitizer 3 Pack W20750
- Price
- $63.23
- Rating
- 4.5/5
- Reviews
- 393
- Age
- 11y ago

Replacement for Nature2 W20750 Spa Mineral Sticks Hot Tub in-Filter Cartridge Last for 4 Months Universal for Hot Tub Spa Swimming Pool All Spas Flow Rates Up to 1000 Gallons (Yellow 2-Pack)
- Price
- $19.36
- Rating
- 4.3/5
- Reviews
- 52
- Age
- 1y ago

ROYOR Spa Mineral Sticks for Hot Tub Supplies Hot Tub Mineral Stick Inserts Filter Cartridge - 2 Pack
- Price
- $19.70
- Rating
- 4.6/5
- Reviews
- 565
- Age
- 4y ago
Trending
estimated 90-day click momentum
Joepoe SPA Mineral Sticks for Hot Tub 4-Pack Yellow 4 Months Lifetime Universal for Most Hot Tub & Pool Spa Mineral Cartridge Keeps Spa Water Crystal Clear
- Price
- $31.17
- Rating
- 4.6/5
- Reviews
- 133
- Age
- 4y ago

Replacement for Nature2 W20750 Spa Mineral Sticks Hot Tub in-Filter Cartridge Last for 4 Months Universal for Hot Tub Spa Swimming Pool All Spas Flow Rates Up to 1000 Gallons (Yellow 2-Pack)
- Price
- $19.36
- Rating
- 4.3/5
- Reviews
- 52
- Age
- 1y ago

BFJOG Spa Mineral Sticks for Hot Tub Hot Tub Mineral Stick 2 Pack
- Price
- $14.22
- Rating
- 4.6/5
- Reviews
- 82
- Age
- 1y ago

Nature2 Spa Mineral Sanitizer 2 Pack W20750 Multicolor
- Price
- $58.19
- Rating
- 4.7/5
- Reviews
- 535
- Age
- 5y ago

OBMAO Spa Mineral Sticks Hot Tub Mineral Stick Spa Mineral Sticks for Hot Tub with 4 Months Lifetime Universal for Pool&Hot Tub to Keep Water Clear(Yellow 2PCS)
- Price
- $18.58
- Rating
- 4.5/5
- Reviews
- 303
- Age
- 3y ago
Newest
by launch date
BFJOG Spa Mineral Sticks for Hot Tub Hot Tub Mineral Stick 2 Pack
- Price
- $14.22
- Rating
- 4.6/5
- Reviews
- 82
- Age
- 1y ago

Replacement for Nature2 W20750 Spa Mineral Sticks Hot Tub in-Filter Cartridge Last for 4 Months Universal for Hot Tub Spa Swimming Pool All Spas Flow Rates Up to 1000 Gallons (Yellow 2-Pack)
- Price
- $19.36
- Rating
- 4.3/5
- Reviews
- 52
- Age
- 1y ago

OBMAO Spa Mineral Sticks Hot Tub Mineral Stick Spa Mineral Sticks for Hot Tub with 4 Months Lifetime Universal for Pool&Hot Tub to Keep Water Clear(Yellow 2PCS)
- Price
- $18.58
- Rating
- 4.5/5
- Reviews
- 303
- Age
- 3y ago

Joepoe SPA Mineral Sticks for Hot Tub 4-Pack Yellow 4 Months Lifetime Universal for Most Hot Tub & Pool Spa Mineral Cartridge Keeps Spa Water Crystal Clear
- Price
- $31.17
- Rating
- 4.6/5
- Reviews
- 133
- Age
- 4y ago

ROYOR Spa Mineral Sticks for Hot Tub Supplies Hot Tub Mineral Stick Inserts Filter Cartridge - 2 Pack
- Price
- $19.70
- Rating
- 4.6/5
- Reviews
- 565
- Age
- 4y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 89% of clicks. A locked shelf that new listings rarely crack.
Brands
7 flat
Sellers
31
Est. top-5 brand share
93%
Top 20: 100%
Est. top-5 click share
89%
Top 20: 100%
Open market
3%
- Nature249%
- OBMAO23%
- E-cowlboy11%
- ROYOR6%
- Joepoe4%
- Bilinavy4%
- Open — no brand owns it (1 brand, 3%)
Demand
Nature 2 Spa Mineral Cartridge for Hot Tub search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Apr, Sep, Oct · busiest ÷ quietest = 5.9×
Reviews and returns
What reviews say buyers love and hate about Nature 2 Spa Mineral Cartridge for Hot Tub
We read the reviews and the return reasons for every product selling here.
“Last one month”
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.
20 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 Nature 2 Spa Mineral Cartridge for Hot Tub 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









