---
title: "Honeywell 20x25x4 Air Filter — $1.1M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/honeywell-20x25x4-air-filter"
last_updated: "2026-08-09T21:40:28.403Z"
locale: en
meta:
description: "Niche score 54/100 · $1.1M/yr market. Brand-locked demand (top 5 brands take 94% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 54/100 · $1.1M/yr market. Brand-locked demand (top 5 brands take 94% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Honeywell 20x25x4 Air Filter — $1.1M/yr Amazon US Niche (2026) - Flapen"
---
# **honeywell 20x25x4 air filter**
**Worth a look**
Shows searches that convert (12.2% search→purchase), but brand-locked demand (top 5 brands take 94% of clicks) keeps it on the watch list.
Market size 80Growth 45Conversion 95Competition 25Returns 93Price range 68Avg price 85Brand share 15Review moat 24Quality gap 23
**Conversion**
**Incredible****12.2%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Great****1.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$72.71**
avg listing price — sweet spot $15–$100
**Market size**
**Great****$1.1M**
$1.1M/yr · 126K searches
**Price range**
**Good****$36.11–$130.14**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Okay****+15.8%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****70%**
top-5 click share — a locked-up shelf
**Review moat**
**Bad****6,100.2**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Bad****94%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, honeywell 20x25x4 air filter is a $1.1M/yr Amazon United States market (126K searches/yr). The top 5 brands hold 94% of demand. Verdict: Worth a look — 54/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **honeywell 20x25x4 air filter market data**
- **Units sold / yr**
- **15K–20K**
- avg 750–1,000/product
- **Revenue / yr**
- **$1.1M–$1.5M**
- units × avg price
- **Conversion rate**
- **12.2%**
- **Avg BSR**
- **#161**
- **Page quality**
- **0%**
- **Prime**
- **53%**
- **Sponsored**
- **67%**
- **Out of stock**
- **2.7%**
- **Avg brand age**
- **59 months**
- **Avg seller age**
- **171 days**
## **Competition & brand share**
The top 5 products capture 70% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**8 **▲rising
**Sellers**
**54**
**Top-5 brand share**
**94%**
Top 20: 100%
**Top-5 click share**
**70%**
Top 20: 100%
**Open market**
**4%**
- Honeywell45% - Filtrete17% - RESIDEO14% - Honeywell Home10% - Homequip7% - DerBlue2% - Open — no brand owns it (2 brands, 4%)
## **Demand & seasonality**
Weekly Amazon search volume, last 102 weeks — +15.8% search growth over the last 90 days.
3K2KSpike '24Spike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/honeywell-20x25x4-air-filter/trend)
## **Top honeywell 20x25x4 air filter search terms**
- **honeywell 20x25x4 air filter**23K/yr+28.7%10.6% conv. - **honeywell air filter 20x25x4**20K/yr+34.3%7.9% conv. - **honeywell filter 20x25x4**17K/yr+12.2%11.7% conv. - **honeywell home air filter 20x25x4**12K/yr+8.5%12.4% conv. - **20x25x4 air filter honeywell**9K/yr-0.2%13.4% conv. - **honeywell fc100a1037**8K/yr+17.4%13.5% conv. - **fc100a1037 honeywell filter 20x25x4**8K/yr+19.5%12.2% conv. - **fc100a1037**7K/yr+18.2%9.8% conv. - **honeywell 20x25x4**5K/yr+16.3%12.2% conv. - **honeywell furnace filters 20x25x4**5K/yr-10.0%11.9% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/honeywell-20x25x4-air-filter/search-terms)
## **Top honeywell 20x25x4 air filter 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%$112K20%$225K30%$337K40%$449K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 15 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Honeywell FC100A1037 (2 Pack) - 20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder**Honeywell**$66.60**4.8★258 rev](https://www.amazon.com/dp/B0D5RFZCYB) [2**Honeywell FC100A1037-20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (2-Pack)**RESIDEO**$68.46**4.7★62 rev](https://www.amazon.com/dp/B0G5BPYFYY) [3**Honeywell FC100A1037-5 20 x 25 Merv 11 Filter Media (Pack of 5)**Honeywell**$129.82**4.8★1,162 rev](https://www.amazon.com/dp/B019C1OLAW) [4**Filtrete 20x25x4 Air Filter MERV 11 MPR 1000 Micro Allergen Defense 2-Pack Fits Honeywell & AprilAire AC Furnace HVAC Filters for Home Pleated Electrostatic (Actual Size 19.88 x 24.63 x 4.31 in)**Filtrete**$44.90**4.7★1,983 rev](https://www.amazon.com/dp/B09RQCX5YR) [5**20x25x4 Furnace Filters FC100A1037 Filter Replacement Merv 11 Filter Media with Homequip Disposal Bag (2 Pack)**Homequip**$76.35**4.7★1,088 rev](https://www.amazon.com/dp/B007R7XFZG)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**DerBlue 2PACK 20x25x4 AC Furnace Filter Replacement MERV 13 Compatible with Honeywell FC100A1037 Pleated HVAC (Actual Size: 19.94 x 24.88 x 4.38 Inches)**DerBlue**$48.44**65 rev7mo ago](https://www.amazon.com/dp/B0G7YLRQ1H) [**Honeywell FC100A1037-20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (2-Pack)**RESIDEO**$68.46**62 rev7mo ago](https://www.amazon.com/dp/B0G5BPYFYY) [**Honeywell FC100A1037-20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (1-Pack)**RESIDEO**$41.26**62 rev7mo ago](https://www.amazon.com/dp/B0G5BNHZG1) [**20x25x4 Air Filter Replacement MERV 11 FC100A1037 Pleated HVAC AC Furnace Filters with Wholesalehome Cleaning Cloth 2-Pack (Actual Size: 19.94 x 24.88 x 4.38 Inches)**Wholesalehome**$70.52**48 rev8mo ago](https://www.amazon.com/dp/B0G2ZV1X8G) [**Honeywell FC100A1037 (2 Pack) - 20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder**Honeywell**$66.60**258 rev2y ago](https://www.amazon.com/dp/B0D5RFZCYB)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Honeywell FC100A1037-20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (1-Pack)**RESIDEO**$41.26**4.7★**▲ 102%**](https://www.amazon.com/dp/B0G5BNHZG1) [**Honeywell FC100A1037 (2 Pack) - 20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder**Honeywell**$66.60**4.8★**▲ 65%**](https://www.amazon.com/dp/B0D5RFZCYB) [**DerBlue 2PACK 20x25x4 AC Furnace Filter Replacement MERV 13 Compatible with Honeywell FC100A1037 Pleated HVAC (Actual Size: 19.94 x 24.88 x 4.38 Inches)**DerBlue**$48.44**3.9★**▲ 40%**](https://www.amazon.com/dp/B0G7YLRQ1H) [**Honeywell FC100A1037-20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (2-Pack)**RESIDEO**$68.46**4.7★**▲ 31%**](https://www.amazon.com/dp/B0G5BPYFYY) [**Filtrete 20x25x4 Air Filter MERV 11 MPR 1000 Micro Allergen Defense 4-Pack Fits Honeywell & AprilAire AC Furnace HVAC Filters for Home Pleated Electrostatic (Actual Size 19.88 x 24.63 x 4.31 in)**Filtrete**$82.59**4.6★**▲ 22%**](https://www.amazon.com/dp/B01MU27I27)
**~~View all trending →~~**
## **What buyers say about honeywell 20x25x4 air filter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**21%
*“Good filter”*
**Value For Money**17%
*“Great value”*
**Size-Overall**16%
*“Perfect size and fit for my AC unit”*
**Quality-Overall**14%
*“The quality has been consistent”*
**Advertised Vs Actual Product**13%
*“As advertised”*
**Ease Of Use**3%
*“Convenient,”*
**Assembly/Installation**2%
*“Easy to Install Filter”*
**Strength**1%
*“Sturdy”*
**Efficiency**1%
*“Works well collecting air particles”*
**Ease Of Cleaning**1%
*“do a great job capturing dust”*
### **What buyers complain about **
**Size-Overall**48%
*“TOO SMALL”*
**Filtration**15%
*“Barely qualifies as a filter”*
**Quality-Overall**6%
*“Not Good Quality”*
**Thickness**5%
*“Thin and cheap”*
**Value For Money**5%
*“I just wish they were cheaper”*
**Advertised Vs Actual Product**3%
*“False advertising”*
**Strength**2%
*“They were bent”*
**Design-Overall**1%
*“Not very well built”*
**Adhesion/Stickiness**1%
*“some of them glued while others not”*
**Measurement/Reading Accuracy**1%
*“So my mistake was not measuring”*
### **Top return reasons **
**Size-Overall**65%
**Filtration**17%
**Compatibility-Overall**7%
**Value For Money**5%
**Advertised Vs Actual Product**2%
**Thickness**1%
**Defective Material/Parts**1%
**Assembly/Installation**0%
**Functionality-Overall**0%
**Ease Of Use**0%
## **Common questions**
- **Is honeywell 20x25x4 air filter profitable to sell on Amazon United States?**
- The niche generates $1.1M/yr across 15 tracked products. 4 of 4 products launched in the last 360 days are still selling. 90-day search growth is +15.8%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the honeywell 20x25x4 air filter niche?**
- 8 brands and 54 sellers compete. The top 5 products take 70% of clicks and top 5 brands hold 94% of demand.
- **What do buyers complain about in honeywell 20x25x4 air filter?**
- Top complaints mined from reviews: Size-Overall, Filtration, Quality-Overall. The return rate is 1.1%.
- **When does demand for honeywell 20x25x4 air filter peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the honeywell 20x25x4 air filter niche?**
- Listings span $36.11–$130.14; the average listing price is $72.71 (sweet spot $15–$100). The average incumbent carries 6,100 reviews — the moat a new listing must climb.
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