---
title: "Reviews — reusable air filter 20x20x1 - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/reusable-air-filter-20x20x1/reviews"
last_updated: "2026-08-06T05:31:38.888Z"
locale: en
meta:
  description: "Niche score 51/100 · $84K/yr market · 49K searches/yr · $35.36 avg price. A small market ($84K/yr) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 51/100 · $84K/yr market · 49K searches/yr · $35.36 avg price. A small market ($84K/yr) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Reviews — reusable air filter 20x20x1 - Flapen"
---

# **reusable air filter 20x20x1**

**Worth a look**

Shows a sweet-spot price point ($35.36 avg), but a small market ($84K/yr) keeps it on the watch list.

Market size 21Growth 77Conversion 57Competition 23Returns 54Price range 95Avg price 95Brand share 47Review moat 72Quality gap 43

**Avg price**

**Incredible****$35.36**

avg listing price — sweet spot $15–$100

**Price range**

**Incredible****$18.92–$55.90**

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

**Growth**

**Great****+65.2%**

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

**Review moat**

**Good****625.13**

avg incumbent reviews — the moat a new listing must climb

**Conversion**

**Good****4.8%**

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

**Returns**

**Good****2.9%**

return rate — above 5% kills the launch gate

**Brand share**

**Okay****77%**

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

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Competition**

**Bad****72%**

top-5 click share — a locked-up shelf

**Market size**

**Bad****$84K**

$84K/yr · 49K searches

## Reviews