---
title: "Search terms — 16x25x4 furnace filter - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/16x25x4-furnace-filter/search-terms"
last_updated: "2026-08-08T17:31:32.012Z"
locale: en
meta:
  description: "Niche score 57/100 · $6.6M/yr market · 892K searches/yr · $59.14 avg price. Clears our launch bar. Data updated Jul 2026."
  "og:description": "Niche score 57/100 · $6.6M/yr market · 892K searches/yr · $59.14 avg price. Clears our launch bar. Data updated Jul 2026."
  "og:title": "Search terms — 16x25x4 furnace filter - Flapen"
---

# **16x25x4 furnace filter**

**Launch it**

A $6.6M/yr market growing +8.5% this quarter with returns at 0.9% — clears our launch bar.

Market size 99Growth 36Conversion 95Competition 26Returns 95Price range 95Avg price 90Brand share 3Review moat 20Quality gap 35

**Market size**

**Incredible****$6.6M**

$6.6M/yr · 892K searches

**Conversion**

**Incredible****12.5%**

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

**Returns**

**Incredible****0.9%**

return rate — above 5% kills the launch gate

**Price range**

**Incredible****$36.04–$90.60**

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

**Avg price**

**Great****$59.14**

avg listing price — sweet spot $15–$100

**Growth**

**Okay****+8.5%**

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

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Competition**

**Okay****70%**

top-5 click share — leaders hold, buyers still browse

**Review moat**

**Bad****12,638.56**

avg incumbent reviews — the moat a new listing must climb

**Brand share**

**Bad****99%**

top-5 brand share — brand-locked demand

**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")

## Search terms