---
title: "Nature 2 Mineral Cartridge for Pool — $229K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/nature-2-mineral-cartridge-for-pool"
last_updated: "2026-08-06T02:17:35.951Z"
locale: en
meta:
description: "Niche score 66/100 · $229K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 66/100 · $229K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Nature 2 Mineral Cartridge for Pool — $229K/yr Amazon US Niche (2026) - Flapen"
---
# **nature 2 mineral cartridge for pool**
**Worth a look**
Shows demand growing +148.1% this quarter, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 43Growth 96Conversion 79Competition 68Returns 92Price range 46Avg price 86Brand share 26Review moat 74Quality gap 53
**Growth**
**Incredible****+148.1%**
90-day search growth — must beat 0% to launch
**Returns**
**Great****1.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$70.20**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****8.1%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Good****525.84**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****44%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Price range**
**Okay****$19.36–$194.33**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Market size**
**Okay****$229K**
$229K/yr · 40K searches
**Brand share**
**Okay****90%**
top-5 brand share — brands hold most of the demand
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, nature 2 mineral cartridge for pool is a $229K/yr Amazon United States market (40K searches/yr). The top 5 brands hold 90% of demand. Demand peaks in Apr–May–Jun. Verdict: Worth a look — 66/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **nature 2 mineral cartridge for pool market data**
- **Units sold / yr**
- **4K–5K**
- avg 0–100/product
- **Revenue / yr**
- **$281K–$351K**
- units × avg price
- **Conversion rate**
- **8.1%**
- **Avg BSR**
- **#973**
- **Page quality**
- **0%**
- **Prime**
- **84%**
- **Sponsored**
- **92%**
- **Out of stock**
- **6.3%**
- **Avg brand age**
- **42 months**
- **Avg seller age**
- **158 days**
## **Competition & brand share**
The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**12 **—flat
**Sellers**
**64**
**Top-5 brand share**
**90%**
Top 20: 100%
**Top-5 click share**
**44%**
Top 20: 83%
**Open market**
**8%**
- E-cowlboy30% - Nature223% - sixcow21% - sdanbom12% - poolrx3% - Onylraep3% - Open — no brand owns it (6 brands, 8%)
## **Demand & seasonality**
Weekly Amazon search volume, last 74 weeks — +148.1% search growth over the last 90 days.
2K2KSpike '25Black Friday '25Spike '26 seasonMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Apr, May, Jun · busiest ÷ quietest = 9.3×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/nature-2-mineral-cartridge-for-pool/trend)
## **Top nature 2 mineral cartridge for pool search terms**
- **nature 2 mineral cartridge**10K/yr+85.3%9.0% conv. - **nature2 mineral cartridge**7K/yr+211.8%9.0% conv. - **nature 2 mineral cartridge for pool**6K/yr+209.9%8.7% conv. - **pool mineral cartridge**5K/yr+155.1%6.4% conv. - **mineral cartridge for pool**3K/yr+233.9%6.4% conv. - **nature 2**4K/yr+94.5%6.9% conv. - **nature 2 pool cartridge**3K/yr+204.3%4.3% conv. - **nature2**3K/yr+102.4%5.3% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/nature-2-mineral-cartridge-for-pool/search-terms)
## **Top nature 2 mineral cartridge for pool 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.
0%4%$9K8%$18K12%$27K16%$37K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Replacement for Nature2 Duoclear 25 35 Mineral Cartridge W28000 W28001 for All Zodiac Duoclear & Nature2 Fusion Fusion Soft Vision Pro System Aboveground Ingroud Swimming Pool Up to 35 000 Gallons**E-cowlboy**$31.47**4.8★359 rev](https://www.amazon.com/dp/B0C3KSYV3J) [2**W28175 Replacement for Nature2 Express Mineral Cartridge for Pool System for In-Ground & Above-Ground Pools up to 30 000 Gallons W20171 W20080 W26775**sixcow**$40.14**4.3★120 rev](https://www.amazon.com/dp/B0CWN9GXTY) [3**Replacement W28000-W28002 for Nature2 Duoclear 25 35 Mineral Cartridge**sdanbom**$38.83**4.5★110 rev](https://www.amazon.com/dp/B0D11DDVCK) [4**Replacement For Nature2 G35 Mineral Cartridge W28135 N2CG35 W26735 for All Zodiac Limited & Professional G or Pro G Plus Vessel Inground Swimming Pool System W25904 & W20011 Pools Up To 35 000 Gallons**E-cowlboy**$56.25**4.4★73 rev](https://www.amazon.com/dp/B0CBS723QY) [5**Nature2 Spa Mineral Sanitizer 2 Pack W20750 Multicolor**Nature2**$58.19**4.7★535 rev](https://www.amazon.com/dp/B075Q6CSYR)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Ciunura Pool Unit Filter Cartridge for 7.5k20k Gallon Pools Replacement Filter Cartridge Compatible with All Types of Pool Systems 6-Month Service Life(Blue&White)**Ciunura**$35.81**34 rev3mo ago](https://www.amazon.com/dp/B0GV3NYFCY) [**W20086 W20176 Replacement for Nature2 Express Vessel & Mineral Cartridge System for In-Ground & Above-Ground Pools Up To 30 000 Gallons W20080 W20171 W28175 W26775 Complete Kit 1-1/2 or 2 Inch Pipe**E-cowlboy**$89.95**50 rev1y ago](https://www.amazon.com/dp/B0F8HY8BSX) [**W28165 Replacement for Nature2 A30 Mineral Cartrigde for All Zodiac Nature2 A or Pro A Plus Vessel W20040 Filter System Aboveground Swimming Pool Up To 30 000 Gallons W26765 2704-010 300379**E-cowlboy**$80.94**5 rev1y ago](https://www.amazon.com/dp/B0F881FV7G) [**DWALE Replacement for Nature2 Duoclear 25 35 Mineral Cartridge W28001 W28002 with Zodiac DuoClear Fusion Fusion Soft Vision Pro System Aboveground Ingroud Pool Vessels for up to 35 000 Gallons Pool**DWALE**$20.14**28 rev1y ago](https://www.amazon.com/dp/B0F83VVT6G) [**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)**E-cowlboy**$19.36**52 rev1y ago](https://www.amazon.com/dp/B0DYK9KT1Y)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Ciunura Pool Unit Filter Cartridge for 7.5k20k Gallon Pools Replacement Filter Cartridge Compatible with All Types of Pool Systems 6-Month Service Life(Blue&White)**Ciunura**$35.81**4.0★**▲ 93%**](https://www.amazon.com/dp/B0GV3NYFCY) [**DWALE Replacement for Nature2 Duoclear 25 35 Mineral Cartridge W28001 W28002 with Zodiac DuoClear Fusion Fusion Soft Vision Pro System Aboveground Ingroud Pool Vessels for up to 35 000 Gallons Pool**DWALE**$20.14**4.7★**▲ 91%**](https://www.amazon.com/dp/B0F83VVT6G) [**W28165 Replacement for Nature2 A30 Mineral Cartrigde W28166 for All A Pro A Plus Vessel System AboveGround Pool for up to 30 000 gallons Pool 2704-010 300379**sixcow**$81.42**4.2★**▲ 76%**](https://www.amazon.com/dp/B0CTT6WV7P) [**W28165 Replacement for Nature2 A30 Mineral Cartrigde for All Zodiac Nature2 A or Pro A Plus Vessel W20040 Filter System Aboveground Swimming Pool Up To 30 000 Gallons W26765 2704-010 300379**E-cowlboy**$80.94**3.8★**▲ 72%**](https://www.amazon.com/dp/B0F881FV7G) [**Nature2 G25 Mineral Cartridge for Inground Pools up to 25 000 Gallons | Mineral Cartridge for Professional G & Pro G Plus Pool Sanitization Vessels | Authentic Replacement Pool Filter Cartridge**Nature2**$168.51**4.6★**▲ 55%**](https://www.amazon.com/dp/B002IT5JQ6)
**~~View all trending →~~**
## **What buyers say about nature 2 mineral cartridge for pool**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**24%
*“Good price”*
**Quality-Overall**10%
*“Good quality, keeps the pool clean”*
**Ease Of Use**10%
*“Easy Use”*
**Advertised Vs Actual Product**9%
*“As advertised”*
**Size-Overall**7%
*“Exact fit”*
**Ease Of Cleaning**6%
*“We use this in our pool and it helps keep it nice and clean”*
**Assembly/Installation**5%
*“Easy to install”*
**Pureness**4%
*“Crystal clear water”*
**Water Resistance**3%
*“It keeps the water clear”*
**Filtration**3%
*“keeps your water crystal clear”*
### **What buyers complain about **
**Value For Money**16%
*“Costly,”*
**Functionality-Overall**14%
*“no longer effective”*
**Durability**5%
*“Doesn't seem to last that long”*
**Color**5%
*“turned my hair blue/green”*
**Product Condition**4%
*“Pool RX sent me a used item”*
**Filtration**4%
*“this year it clogged my de filter”*
**Stain Resistance**4%
*“Stained my freshly painted pool floor”*
**Leak-Proof**4%
*“Product leaks from the top even when base is fully secured”*
**Contamination**3%
*“Algae and bacteria dont thrive in the presence of copper and silver”*
**Ease Of Cleaning**3%
*“Cheaper substitute does not work properly to clean the pool”*
### **Top return reasons **
**Size-Overall**34%
**Leak-Proof**12%
**Functionality-Overall**10%
**Product Condition**9%
**Advertised Vs Actual Product**8%
**Defective Material/Parts**6%
**Value For Money**5%
**Filtration**4%
**Color**2%
**Stain Resistance**2%
## **Common questions**
- **Is nature 2 mineral cartridge for pool profitable to sell on Amazon United States?**
- The niche generates $229K/yr across 37 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +148.1%. Flapen's verdict: Worth a look (66/100).
- **How competitive is the nature 2 mineral cartridge for pool niche?**
- 12 brands and 64 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 90% of demand.
- **What do buyers complain about in nature 2 mineral cartridge for pool?**
- Top complaints mined from reviews: Value For Money, Functionality-Overall, Durability. The return rate is 1.1%.
- **When does demand for nature 2 mineral cartridge for pool peak?**
- Demand peaks in Apr–May–Jun; the busiest month runs 9.3× the quietest.
- **What does it cost to enter the nature 2 mineral cartridge for pool niche?**
- Listings span $19.36–$194.33; the average listing price is $70.20 (sweet spot $15–$100). The average incumbent carries 526 reviews — the moat a new listing must climb.
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