---
title: "Reviews — carbon water filter - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/carbon-water-filter/reviews"
last_updated: "2026-08-08T21:05:05.797Z"
locale: en
meta:
  description: "Niche score 53/100 · $320K/yr market · 112K searches/yr. Prices mostly outside the sweet spot ($6.12–$421.20) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 53/100 · $320K/yr market · 112K searches/yr. Prices mostly outside the sweet spot ($6.12–$421.20) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Reviews — carbon water filter - Flapen"
---

# **carbon water filter**

**Worth a look**

Shows a sweet-spot price point ($65.30 avg), but prices mostly outside the sweet spot ($6.12–$421.20) keeps it on the watch list.

Market size 52Growth 25Conversion 53Competition 79Returns 72Price range 20Avg price 88Brand share 75Review moat 35Quality gap 23

**Avg price**

**Great****$65.30**

avg listing price — sweet spot $15–$100

**Competition**

**Great****36%**

top-5 click share — an open shelf

**Brand share**

**Good****60%**

top-5 brand share — brands hold most of the demand

**Returns**

**Good****2.1%**

return rate — above 5% kills the launch gate

**Conversion**

**Good****4.4%**

search→purchase rate — share of searches ending in a sale

**Market size**

**Good****$320K**

$320K/yr · 112K searches

**Review moat**

**Okay****3,038.43**

avg incumbent reviews — the moat a new listing must climb

**Growth**

**Bad****-0.7%**

90-day search growth — must beat 0% to launch

**Quality gap**

**Bad****4.6★**

avg incumbent rating — lower means beatable quality

**Price range**

**Bad****$6.12–$421.20**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")

## Reviews