---
title: "C900 Pool Filter Cartridge — $103K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/c900-pool-filter-cartridge"
last_updated: "2026-08-05T19:20:56.108Z"
locale: en
meta:
description: "Niche score 63/100 · $103K/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 63/100 · $103K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "C900 Pool Filter Cartridge — $103K/yr Amazon US Niche (2026) - Flapen"
---
# **c900 pool filter cartridge**
**Worth a look**
Shows searches that convert (11.3% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 25Growth 86Conversion 92Competition 36Returns 87Price range 85Avg price 90Brand share 64Review moat 82Quality gap 33
**Conversion**
**Great****11.3%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$58.72**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.4%**
return rate — above 5% kills the launch gate
**Growth**
**Great****+88.3%**
90-day search growth — must beat 0% to launch
**Price range**
**Great****$36.95–$109.44**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****365.36**
avg incumbent reviews — the moat a new listing must climb
**Brand share**
**Good****67%**
top-5 brand share — brands hold most of the demand
**Competition**
**Okay****63%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$103K**
$103K/yr · 16K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, c900 pool filter cartridge is a $103K/yr Amazon United States market (16K searches/yr). The top 5 brands hold 67% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 63/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **c900 pool filter cartridge market data**
- **Units sold / yr**
- **2K–3K**
- avg 0–100/product
- **Revenue / yr**
- **$117K–$147K**
- units × avg price
- **Conversion rate**
- **11.3%**
- **Avg BSR**
- **#621**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **95%**
- **Out of stock**
- **4.5%**
- **Avg brand age**
- **35 months**
- **Avg seller age**
- **175 days**
## **Competition & brand share**
The top 5 products take 63% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**19 **▼falling
**Sellers**
**31**
**Top-5 brand share**
**67%**
Top 20: 100%
**Top-5 click share**
**63%**
Top 20: 99%
**Open market**
**29%**
- Fil-fresh22% - Cryspool14% - Future Way12% - POOLPURE12% - TOREAD7% - Cielvita5%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +88.3% search growth over the last 90 days.
500300Spike '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 3.5×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/c900-pool-filter-cartridge/trend)
## **Top c900 pool filter cartridge search terms**
- **c900 pool filter cartridge**9K/yr+72.3%9.6% conv. - **hayward c900 pool filter cartridge**3K/yr+177.9%10.9% conv. - **pa90 pool filter cartridge**3K/yr+57.5%12.7% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/c900-pool-filter-cartridge/search-terms)
## **Top c900 pool filter cartridge 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%10%$10K20%$21K30%$31K40%$41K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 22 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Fil-fresh C900 Pool Filter Cartridges Compatible with Hayward C900 Replacement for Pleatco PA90 Hayward CX900RE Unicel C-8409 90 sq.ft**Fil-fresh**$47.40**4.4★61 rev](https://www.amazon.com/dp/B0CNCK9BNR) [2**Future Way C900 Pool Filter Cartridge Replacement for Hayward C900 Replace Pleatco PA90 Hayward CX900RE Unicel C-8409 90 sq.ft**Future Way**$54.20**4.6★970 rev](https://www.amazon.com/dp/B0819KP6Y4) [3**Cryspool 08046 Filter Compatible with Hayward C900 CX900RE C-900 PA90 Posi-Clear PXC-95 C-8409 Ultral-B6 PP-B6 FC-1292 90 Sq. Ft Pool Filter Cartridge 1 Pack**Cryspool**$55.98**4.7★509 rev](https://www.amazon.com/dp/B09X5SZ5WG) [4**POOLPURE PLF90A Pool Filter Replaces Hayward C900 CX900RE Pleatco PA90 Ultral-B6 Unicel C-8409 Filbur FC-1292 Sta-Rite PXC95 90 sq.ft L x OD: 17 3/8 x 8 15/16 (1 Pack)**POOLPURE**$61.48**4.6★2,245 rev](https://www.amazon.com/dp/B07RT8S1CJ) [5**TOREAD Replacement for Pool Filter PA90 CX900RE C900 Unicel C-8409 Filbur FC-1292 Posi-Clear Sta-Rite PXC95 Clearwater II ProClean 100 Aladdin 19002 25230-0095S 1 Pack**TOREAD**$54.60**4.7★1,211 rev](https://www.amazon.com/dp/B07ZKHWHCN)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**AmiBron C900 Pool Filter Cartridge Compatible with Hayward CX900RE PA90 C-8409 Ultra-B6 FC-1292 Posi-Clear PXC-95 L x OD: 17 3/8 x 8 15/16 90 sq.ft. 1Pack**AmiBron**$43.33**10 rev6mo ago](https://www.amazon.com/dp/B0GFMJFCY2) [**USATURE C900 Pool Filter Cartridge Replacement for Hayward Star Clear Plus C900 CX900RE Pleatco PA90 Unicel C-8409 Filbur FC-1292 90 sq.ft Cartridge L x OD: 17-3/8 x 8-15/16**USATURE**$49.50**17 rev6mo ago](https://www.amazon.com/dp/B0GDH5W9FV) [**Cielvita C900 4 oz Media Pool Filter Cartridge Replacement for Hayward StarClear Plus C900 C9002 for Hayward CX900RE for Pleatco PA90 for Unicel C-8409 for FC-1292 NSF/ANSI 50 Certified 90 sq.ft**Cielvita**$46.70**17 rev7mo ago](https://www.amazon.com/dp/B0G6YG483S) [**Swimara Pro Series Pool Filter Cartridge 3oz Trilobal Fabric Replacement for Hayward CX900RE PA90 Unicel C-8409 Filbur FC-1292 Compatible with Star-Clear Plus C900 C751 90 Sq. Ft.**Swimara**$47.01**108 rev10mo ago](https://www.amazon.com/dp/B0FRMRMHB7) [**Jumvogo 90 Sq. Ft. Pool Filter Cartridge Compatible with C900 CX900RE Clearwater II Pro Clean 100 C-8409 PA90 Ultral-B6 FC-1292 1 Pack**Jumvogo**$43.51**13 rev1y ago](https://www.amazon.com/dp/B0FHW321VN)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Cielvita C900 4 oz Media Pool Filter Cartridge Replacement for Hayward StarClear Plus C900 C9002 for Hayward CX900RE for Pleatco PA90 for Unicel C-8409 for FC-1292 NSF/ANSI 50 Certified 90 sq.ft**Cielvita**$46.70**4.8★**▲ 89%**](https://www.amazon.com/dp/B0G6YG483S) [**Fil-fresh C900 Pool Filter Cartridges Compatible with Hayward C900 Replacement for Pleatco PA90 Hayward CX900RE Unicel C-8409 90 sq.ft**Fil-fresh**$47.40**4.4★**▲ 70%**](https://www.amazon.com/dp/B0CNCK9BNR) [**WuYan C900 Pool Filter Cartridges for Hayward C900 CX900RE for Pleatco PA90 C-8409 PP-B6 FC-1292 for Posi-Clear PXC-95 90 Sq. Ft Pool Filter Cartridge**WuYan**$39.95**3.6★**▲ 62%**](https://www.amazon.com/dp/B0F2Y9HMTJ) [**Leadpool C900 Pool Filter Cartridge Replacement for CX900RE PA90 FC-1292 C-8409 90 Sq.ft 1 Pack**Leadpool**$45.22**5.0★**▲ 55%**](https://www.amazon.com/dp/B0GT31232J) [**Swimara Pro Series Pool Filter Cartridge 3oz Trilobal Fabric Replacement for Hayward CX900RE PA90 Unicel C-8409 Filbur FC-1292 Compatible with Star-Clear Plus C900 C751 90 Sq. Ft.**Swimara**$47.01**4.4★**▲ 53%**](https://www.amazon.com/dp/B0FRMRMHB7)
**~~View all trending →~~**
## **What buyers say about c900 pool filter cartridge**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**23%
*“A lot cheaper”*
**Filtration**22%
*“The filter works beautifully”*
**Size-Overall**15%
*“Exact fit”*
**Quality-Overall**11%
*“The build quality is impressive”*
**Advertised Vs Actual Product**6%
*“As advertised”*
**Ease Of Cleaning**4%
*“Cleans up nicely”*
**Durability**3%
*“seems very durable”*
**Assembly/Installation**3%
*“simple to install”*
**Material Quality**2%
*“The material feels durable and high quality, and it has held up really well with regular use”*
**Maintenance And Repair**1%
*“Great for regular maintenance”*
### **What buyers complain about **
**Filtration**28%
*“WORST FILTER EVER”*
**Durability**14%
*“it came apart instantly”*
**Size-Overall**7%
*“It was two short”*
**Quality-Overall**5%
*“Bad quality”*
**Jamming/Clogging**5%
*“clogged pool filter for this one was a straightforward Saturday morning project that took me about fifteen minutes”*
**Pressure**4%
*“the pressure was low all the time”*
**Assembly/Installation**2%
*“I haven't even installed it”*
**Advertised Vs Actual Product**2%
*“Despite those positives, however, I am concerned about the products presentation”*
**Weight Heavy**2%
*“heavy after cleaned pool guy wanted to know if it was used”*
**Material Quality**1%
*“these are now made cheaper with material”*
### **Top return reasons **
**Size-Overall**60%
**Filtration**27%
**Advertised Vs Actual Product**5%
**Value For Money**2%
**Defective Material/Parts**1%
**Functionality-Overall**1%
**Quality-Overall**1%
**Durability**1%
**Jamming/Clogging**1%
**Material Quality**1%
## **Common questions**
- **Is c900 pool filter cartridge profitable to sell on Amazon United States?**
- The niche generates $103K/yr across 22 tracked products. 3 of 4 products launched in the last 360 days are still selling. 90-day search growth is +88.3%. Flapen's verdict: Worth a look (63/100).
- **How competitive is the c900 pool filter cartridge niche?**
- 19 brands and 31 sellers compete. The top 5 products take 63% of clicks and top 5 brands hold 67% of demand.
- **What do buyers complain about in c900 pool filter cartridge?**
- Top complaints mined from reviews: Filtration, Durability, Size-Overall. The return rate is 1.4%.
- **When does demand for c900 pool filter cartridge peak?**
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 3.5× the quietest.
- **What does it cost to enter the c900 pool filter cartridge niche?**
- Listings span $36.95–$109.44; the average listing price is $58.72 (sweet spot $15–$100). The average incumbent carries 365 reviews — the moat a new listing must climb.
## **Related niches in Patio, Lawn & Garden**
- 82 [**lawn aerator**](https://flapen.com/research/us/patio-lawn-garden/lawn-aerator)$6.2M/yr+90.1%**Launch it**- 82 [**shepherds hooks for outdoor**](https://flapen.com/research/us/patio-lawn-garden/shepherds-hooks-for-outdoor)$3.9M/yr+141.2%**Launch it**- 82 [**garden mesh**](https://flapen.com/research/us/patio-lawn-garden/garden-mesh)$716K/yr+152.7%**Worth a look**- 83 [**chicken waterer**](https://flapen.com/research/us/patio-lawn-garden/chicken-waterer)$3.4M/yr+70.1%**Launch it**- 83 [**75 foot garden hose**](https://flapen.com/research/us/patio-lawn-garden/75-foot-garden-hose)$1.8M/yr+117.6%**Launch it**- 83 [**bird deterrents for outside**](https://flapen.com/research/us/patio-lawn-garden/bird-deterrents-for-outside)$2.1M/yr+131.5%**Launch it**[**All Patio, Lawn & Garden niches **](https://flapen.com/research/us/patio-lawn-garden)