---
title: "Water Filter Cartridge — $245K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/water-filter-cartridge"
last_updated: "2026-08-08T10:21:14.951Z"
locale: en
meta:
description: "Niche score 46/100 · $245K/yr market · 169K searches/yr · $20.92 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $245K/yr market · 169K searches/yr · $20.92 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Water Filter Cartridge — $245K/yr Amazon US Niche (2026) - Flapen"
---
# **water filter cartridge**
**Skip it**
Soft demand (-10.0% this quarter) — this niche doesn't clear our bar today.
Market size 46Growth 20Conversion 75Competition 25Returns 96Price range 79Avg price 90Brand share 33Review moat 21Quality gap 24
**Returns**
**Incredible****0.9%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$20.92**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$10.09–$34.84**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Good****7.0%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Okay****$245K**
$245K/yr · 169K searches
**Brand share**
**Okay****85%**
top-5 brand share — brands hold most of the demand
**Competition**
**Bad****71%**
top-5 click share — a locked-up shelf
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****10,584.21**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-10.0%**
90-day search growth — must beat 0% to launch
According to Flapen's Amazon United States niche tracking, water filter cartridge is a $245K/yr Amazon United States market (169K searches/yr). The top 5 brands hold 85% of demand. Demand peaks in Aug. Verdict: Skip it — 46/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **water filter cartridge market data**
- **Units sold / yr**
- **10K–13K**
- avg 750–1,000/product
- **Revenue / yr**
- **$209K–$262K**
- units × avg price
- **Conversion rate**
- **7.0%**
- **Avg BSR**
- **#87**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **86%**
- **Out of stock**
- **7.7%**
- **Avg brand age**
- **78 months**
- **Avg seller age**
- **147 days**
## **Competition & brand share**
The top 5 products capture 71% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**10 **▲rising
**Sellers**
**39**
**Top-5 brand share**
**85%**
Top 20: 100%
**Top-5 click share**
**71%**
Top 20: 100%
**Open market**
**10%**
- Amazon Basics57% - Aquaboon9% - PUREPLUS7% - ICEPURE7% - Membrane Solutions6% - Culligan5% - Open — no brand owns it (4 brands, 10%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -10.0% search growth over the last 90 days.
5K3KHoliday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/water-filter-cartridge/trend)
## **Top water filter cartridge search terms**
- **water filter cartridge**42K/yr+6.1%3.8% conv. - **water filters cartridges**22K/yr-10.1%2.2% conv. - **water filter cartridge replacement**19K/yr-5.9%4.1% conv. - **amazon basics water filter**13K/yr-0.7%12.1% conv. - **replacement under-sink water filters**13K/yr-10.8%0.2% conv. - **water filter cartridges**12K/yr-9.1%4.2% conv. - **cartuchos para filtros de agua**8K/yr-8.7%0.5% conv. - **amazon basics water filter pitcher**9K/yr-38.2%9.3% conv. - **replacement water filter cartridges**7K/yr-28.7%1.0% conv. - **cartucho de filtro de agua**6K/yr-28.0%0.4% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/water-filter-cartridge/search-terms)
## **Top water 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%$25K20%$49K30%$74K40%$98K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Amazon Basics Enhanced Water Filters for Pitcher Brita Compatible 3-Pack**Amazon Basics**$11.15**4.6★34,546 rev](https://www.amazon.com/dp/B07YT16TMS) [2**Amazon Basics 10-Cup Pitcher with Filter Compatible with Brita Water Filter**Amazon Basics**$23.67**4.4★8,042 rev](https://www.amazon.com/dp/B07YT18P21) [3**Amazon Basics Enhanced Water Filters for Pitcher Brita Compatible 6-Pack**Amazon Basics**$17.82**4.6★34,546 rev](https://www.amazon.com/dp/B07YT1NTCX) [4**Aquaboon 5 Micron 10 x 2.5 Sediment Filter - Whole House Water Filter Replacement Compatible with Well Water Filters - P5 AP110 WHKF-GD05 6 Pack**Aquaboon**$23.32**4.7★5,541 rev](https://www.amazon.com/dp/B01M01EDHK) [5**ICEPURE 1 Micron 2.5 x 10 Whole House CTO Carbon Sediment Water Filter Cartridge Compatible with DuPont WFPFC8002 WFPFC9001 SCWH-5 WHCF-WHWC WHCF-WHWC FXWTC CBC-10 RO Unit Pack of 4**ICEPURE**$26.77**4.6★6,299 rev](https://www.amazon.com/dp/B084DPJW37)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**AquaWeaver 5 Micron Sediment Water Filter Cartridge 10 x 2.5 Whole House Filter Replacement Compatible with All Standard 10-Inch RO and Well Water Filter Systems HF-150A WH-S200-C AP11T 6 Pack**AquaWeaver**$21.56**90 rev8mo ago](https://www.amazon.com/dp/B0G3XT7J6T) [**Amazon Basics Under Sink Water Filter System NSF/ANSI 42 & 372 Certified Easy Twist-and-Lock Design 11 000 Gallons 1 Year Service Life White**Amazon Basics**$34.84**180 rev11mo ago](https://www.amazon.com/dp/B0DPYTFBWL) [**Amazon Basics Enhanced Water Filters for Pitcher Brita Compatible 3-Pack**Amazon Basics**$11.15**34,546 rev5y ago](https://www.amazon.com/dp/B07YT16TMS) [**Amazon Basics 10-Cup Pitcher with Filter Compatible with Brita Water Filter**Amazon Basics**$23.67**8,042 rev6y ago](https://www.amazon.com/dp/B07YT18P21) [**Amazon Basics Enhanced Water Filters for Pitcher Brita Compatible 6-Pack**Amazon Basics**$17.82**34,546 rev6y ago](https://www.amazon.com/dp/B07YT1NTCX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**AquaWeaver 5 Micron Sediment Water Filter Cartridge 10 x 2.5 Whole House Filter Replacement Compatible with All Standard 10-Inch RO and Well Water Filter Systems HF-150A WH-S200-C AP11T 6 Pack**AquaWeaver**$21.56**4.8★**▲ 176%**](https://www.amazon.com/dp/B0G3XT7J6T) [**Culligan SCWH-5 Whole House Water Filter Cartridges - Standard-Duty Carbon Replacement Filter Reduces Sediment Rust Scale & Dirt for Clean Drinking Water or for Cooking 15 000 Gallons Pack of 2**Culligan**$10.17**4.7★**▲ 27%**](https://www.amazon.com/dp/B00KWJLCXS) [**1 Micron 2.5 x 10 Whole House CTO Carbon Water Filter Cartridge Replacement for Under Sink Water Filter System Dupont WFPFC8002 WFPFC9001 FXWTC SCWH-5 WHEF-WHWC WHCF-WHWC AMZN-SCWH-5 4Pack**PUREPLUS**$26.90**4.6★**▲ 17%**](https://www.amazon.com/dp/B01N1IJ5V1) [**Aquaboon 5 Micron 10 x 2.5 Sediment Filter - Whole House Water Filter Replacement Compatible with Well Water Filters - P5 AP110 WHKF-GD05 6 Pack**Aquaboon**$23.32**4.7★**▲ 17%**](https://www.amazon.com/dp/B01M01EDHK) [**Membrane Solutions 5 Micron 10x2.5 String Wound Whole House Water Filter Replacement Cartridge Universal Sediment Filters for Well Water - 6 Pack**Membrane Solutions**$29.07**4.7★**▲ 12%**](https://www.amazon.com/dp/B082PXRJBZ)
**~~View all trending →~~**
## **What buyers say about water filter cartridge**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**29%
*“Excellent Filter”*
**Value For Money**17%
*“Decent price”*
**Size-Overall**14%
*“Fits like a glove”*
**Quality-Overall**10%
*“Build quality looks solid”*
**Advertised Vs Actual Product**9%
*“As described”*
**Ease Of Use**3%
*“Easy to use”*
**Efficiency**3%
*“They still do the same job”*
**Assembly/Installation**2%
*“Easy to assemble and use”*
**Compatibility-Overall**2%
*“Work great for my water filter system”*
**Water Resistance**1%
*“Keeps water clean and clear”*
### **What buyers complain about **
**Filtration**31%
*“Poor quality water filter”*
**Size-Overall**10%
*“Do not fit”*
**Quality-Overall**7%
*“Cheaply made”*
**Durability**5%
*“Broke inside of six months”*
**Leak-Proof**5%
*“Leaks like crazy”*
**Value For Money**4%
*“cheaper”*
**Ease Of Use**3%
*“which means it's hard to take off”*
**Water Resistance**3%
*“Water Filtes”*
**Jamming/Clogging**2%
*“The water gets clogged”*
**Smell**2%
*“It makes the water smell and taste funny”*
### **Top return reasons **
**Size-Overall**47%
**Filtration**24%
**Compatibility-Overall**11%
**Value For Money**3%
**Advertised Vs Actual Product**3%
**Leak-Proof**2%
**Functionality-Overall**2%
**Quality-Overall**1%
**Water Resistance**1%
**Material Quality**1%
## **Common questions**
- **Is water filter cartridge profitable to sell on Amazon United States?**
- The niche generates $245K/yr across 14 tracked products. 2 of 2 products launched in the last 360 days are still selling. 90-day search growth is -10.0%. Flapen's verdict: Skip it (46/100).
- **How competitive is the water filter cartridge niche?**
- 10 brands and 39 sellers compete. The top 5 products take 71% of clicks and top 5 brands hold 85% of demand.
- **What do buyers complain about in water filter cartridge?**
- Top complaints mined from reviews: Filtration, Size-Overall, Quality-Overall. The return rate is 0.9%.
- **When does demand for water filter cartridge peak?**
- Demand peaks in Aug; the busiest month runs 1.5× the quietest.
- **What does it cost to enter the water filter cartridge niche?**
- Listings span $10.09–$34.84; the average listing price is $20.92 (sweet spot $15–$100). The average incumbent carries 10,584 reviews — the moat a new listing must climb.
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