---
title: "Search terms — whole house water filter - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/whole-house-water-filter/search-terms"
last_updated: "2026-08-06T22:22:49.003Z"
locale: en
meta:
  description: "Niche score 57/100 · $12.2M/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 57/100 · $12.2M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Search terms — whole house water filter - Flapen"
---

# **whole house water filter**

**Worth a look**

Shows a $12.2M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 100Growth 25Conversion 31Competition 81Returns 67Price range 4Avg price 34Brand share 82Review moat 44Quality gap 38

**Market size**

**Incredible****$12.2M**

$12.2M/yr · 1.8M searches

**Brand share**

**Great****53%**

top-5 brand share — no brand owns this niche

**Competition**

**Great****34%**

top-5 click share — an open shelf

**Returns**

**Good****2.3%**

return rate — above 5% kills the launch gate

**Review moat**

**Okay****2,087.71**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Avg price**

**Okay****$277.96**

avg listing price — sweet spot $15–$100

**Conversion**

**Okay****2.4%**

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

**Growth**

**Bad****-0.2%**

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

**Price range**

**Bad****$8.86–$2436.48**

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")

## Search terms