---
title: "Filtrete Water Filter Under Sink — $64K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/filtrete-water-filter-under-sink"
last_updated: "2026-08-09T03:16:21.749Z"
locale: en
meta:
description: "Niche score 40/100 · $64K/yr market · 14K searches/yr · $43.10 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 40/100 · $64K/yr market · 14K searches/yr · $43.10 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Filtrete Water Filter Under Sink — $64K/yr Amazon US Niche (2026) - Flapen"
---
# **filtrete water filter under sink**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 16Growth 18Conversion 89Competition 20Returns 95Price range 90Avg price 95Brand share 0Review moat 45Quality gap 23
**Returns**
**Incredible****1.0%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$43.10**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$11.56–$71.97**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Great****10.6%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Okay****2,018.36**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****76%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-13.7%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$64K**
$64K/yr · 14K searches
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, filtrete water filter under sink is a $64K/yr Amazon United States market (14K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan–Feb. Verdict: Skip it — 40/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **filtrete water filter under sink market data**
- **Units sold / yr**
- **2K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$65K–$86K**
- units × avg price
- **Conversion rate**
- **10.6%**
- **Avg BSR**
- **#216**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **91 months**
- **Avg seller age**
- **127 days**
## **Competition & brand share**
The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▼falling
**Sellers**
**36**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**76%**
Top 20: 100%
**Open market**
**0%**
- Filtrete54% - Waterdrop25% - AQUA CREST13% - Filterlogic5% - Waterspecialist2% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -13.7% search growth over the last 90 days.
1K750Spike '25Prime Day '25Black Friday '25Spike '26Prime Day '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan, Feb · busiest ÷ quietest = 3.7×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/filtrete-water-filter-under-sink/trend)
## **Top filtrete water filter under sink search terms**
- **3us-max-f01**4K/yr+5.5%8.9% conv. - **filtrete water filter**3K/yr+5.0%7.3% conv. - **filtrete water filter under sink**4K/yr-26.7%8.6% conv. - **3us-pf01**4K/yr-30.1%11.1% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/filtrete-water-filter-under-sink/search-terms)
## **Top filtrete water filter under sink 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%$6K20%$13K30%$19K40%$26K1001K10K 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**Filtrete Maximum Under Sink Quick Change Water Filtration Replacement Filter 3US-MAX-F01 for use with System 3US-MAX-S01**Filtrete**$63.45**4.7★2,115 rev](https://www.amazon.com/dp/B01L0ADGUO) [2**Filtrete Advanced Under Sink Quick Change Water Filter Replacement 3US-PF01**Filtrete**$58.94**4.7★4,996 rev](https://www.amazon.com/dp/B001DVRR4W) [3**Waterdrop 3US-MAX-F01 3US-PF01 Under Sink Water Filter Replacement for Filtrete 3US-PF01 3US-PS01 Maximum 3US-MAX-S01 Aqua-Pure C-Cyst-FF Manitowoc K-00337 K-00338 NSF/ANSI 42 Certified 2 Pack**Waterdrop**$49.34**4.6★1,760 rev](https://www.amazon.com/dp/B075J8Q4BB) [4**AQUA CREST 3US-PF01 Water Filter Replacement for Filtrete 3US-PS01 2 Pack**AQUA CREST**$47.28**4.7★1,949 rev](https://www.amazon.com/dp/B01G3T08RG) [5**Waterdrop 3US-MAX-F01 3US-PF01 Maximum Under Sink Water Filter**Waterdrop**$30.34**4.6★957 rev](https://www.amazon.com/dp/B089CTG9KN)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Filtrete Advanced Under Sink Quick Change Water Filter Replacement 3US-PF01**Filtrete**$58.94**4,996 rev4y ago](https://www.amazon.com/dp/B001DVRR4W) [**Waterdrop 3US-MAX-F01 3US-PF01 Under Sink Water Filter 3 Pack**Waterdrop**$67.54**1,760 rev6y ago](https://www.amazon.com/dp/B0D2VWK2FF) [**Waterspecialist 3US-PF01 3US-MAX-F01 Under Sink Water Filter 2 Pack**Waterspecialist**$46.09**567 rev6y ago](https://www.amazon.com/dp/B08BFXCQPF) [**Waterdrop 3US-MAX-F01 3US-PF01 Maximum Under Sink Water Filter**Waterdrop**$30.34**957 rev6y ago](https://www.amazon.com/dp/B089CTG9KN) [**Filterlogic 3US-PF01 3US-MAX-F01 Under Sink Water Filter 2 Pack**Filterlogic**$44.09**992 rev7y ago](https://www.amazon.com/dp/B07Q9Y7RMP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Filtrete Standard Capacity Whole House Grooved Water Filter 5 Microns Universal Filter Sump Style Drop-In Filter 2-Filters (4WH-STDGR-F02)**Filtrete**$13.35**4.6★**▲ 89%**](https://www.amazon.com/dp/B00910TZM4) [**Filtrete Whole House Water Filter Replacement 3WH-STDCW-F02 2-Pack**Filtrete**$11.56**4.6★**▲ 50%**](https://www.amazon.com/dp/B00910U0XW) [**Filtrete Maximum Under Sink Water Filtration System 3US-MAX-S01**Filtrete**$71.97**4.5★**▲ 36%**](https://www.amazon.com/dp/B01L0ADH3K) [**Filtrete Maximum Under Sink Quick Change Water Filtration Replacement Filter 3US-MAX-F01 for use with System 3US-MAX-S01**Filtrete**$63.45**4.7★**▲ 12%**](https://www.amazon.com/dp/B01L0ADGUO) [**Filtrete Standard Under Sink Water Filtration System 3US-AS01**Filtrete**$41.66**4.5★**▲ 10%**](https://www.amazon.com/dp/B001DVWAVW)
**~~View all trending →~~**
## **What buyers say about filtrete water filter under sink**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**30%
*“Good filter”*
**Quality-Overall**11%
*“Dependable unit”*
**Value For Money**11%
*“Good value”*
**Size-Overall**9%
*“Fit good”*
**Assembly/Installation**8%
*“Easy install”*
**Advertised Vs Actual Product**6%
*“Works as advertised”*
**Leak-Proof**5%
*“Does not leak”*
**Ease Of Use**4%
*“Easy to use”*
**Water Flow**2%
*“provides good drinking water”*
**Smell**2%
*“It even removes the chlorine smell and taste”*
### **What buyers complain about **
**Filtration**43%
*“No a good filter”*
**Value For Money**13%
*“These things are expensive”*
**Leak-Proof**9%
*“I had a leak issue”*
**Durability**7%
*“Doesn't last”*
**Size-Overall**3%
*“Wont fit-doesnt work”*
**Functionality-Overall**3%
*“Essentially it does nothing”*
**Water Resistance**2%
*“There is zero improvement in water quality”*
### **Top return reasons **
**Size-Overall**37%
**Filtration**23%
**Compatibility-Overall**15%
**Advertised Vs Actual Product**4%
**Defective Material/Parts**3%
**Value For Money**3%
**Product Condition**3%
**Leak-Proof**2%
**Assembly/Installation**2%
**Connectivity-Overall**2%
## **Common questions**
- **Is filtrete water filter under sink profitable to sell on Amazon United States?**
- The niche generates $64K/yr across 14 tracked products. 90-day search growth is -13.7%. Flapen's verdict: Skip it (40/100).
- **How competitive is the filtrete water filter under sink niche?**
- 5 brands and 36 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in filtrete water filter under sink?**
- Top complaints mined from reviews: Filtration, Value For Money, Leak-Proof. The return rate is 1.0%.
- **When does demand for filtrete water filter under sink peak?**
- Demand peaks in Jan–Feb; the busiest month runs 3.7× the quietest.
- **What does it cost to enter the filtrete water filter under sink niche?**
- Listings span $11.56–$71.97; the average listing price is $43.10 (sweet spot $15–$100). The average incumbent carries 2,018 reviews — the moat a new listing must climb.
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