---
title: "20x25x4 Air Filter Merv 11 — $268K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/20x25x4-air-filter-merv-11"
last_updated: "2026-08-08T09:42:02.502Z"
locale: en
meta:
description: "Niche score 48/100 · $268K/yr market · 33K searches/yr · $77.56 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 48/100 · $268K/yr market · 33K searches/yr · $77.56 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "20x25x4 Air Filter Merv 11 — $268K/yr Amazon US Niche (2026) - Flapen"
---
# **20x25x4 air filter merv 11**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 49Growth 55Conversion 89Competition 20Returns 90Price range 68Avg price 83Brand share 0Review moat 24Quality gap 24
**Returns**
**Great****1.3%**
return rate — above 5% kills the launch gate
**Conversion**
**Great****10.5%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$77.56**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$35.11–$130.14**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Good****+27.9%**
90-day search growth — must beat 0% to launch
**Market size**
**Okay****$268K**
$268K/yr · 33K searches
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****5,186.62**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Bad****76%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
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, 20x25x4 air filter merv 11 is a $268K/yr Amazon United States market (33K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Oct–Nov. Verdict: Skip it — 48/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **20x25x4 air filter merv 11 market data**
- **Units sold / yr**
- **3K–4K**
- avg 100–250/product
- **Revenue / yr**
- **$233K–$310K**
- units × avg price
- **Conversion rate**
- **10.5%**
- **Avg BSR**
- **#82**
- **Page quality**
- **0%**
- **Prime**
- **54%**
- **Sponsored**
- **85%**
- **Out of stock**
- **3.9%**
- **Avg brand age**
- **51 months**
- **Avg seller age**
- **184 days**
## **Competition & brand share**
The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▼falling
**Sellers**
**39**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**76%**
Top 20: 100%
**Open market**
**0%**
- Filtrete48% - Filterbuy23% - Simply20% - Honeywell7% - Wholesalehome3%
## **Demand & seasonality**
Weekly Amazon search volume, last 103 weeks — +27.9% search growth over the last 90 days.
4K3KSpike '24Spike '25Prime Day '25Spike '26 seasonDecMarJunAugNovMarMay
Peak months: Oct, Nov · busiest ÷ quietest = 4.2×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/20x25x4-air-filter-merv-11/trend)
## **Top 20x25x4 air filter merv 11 search terms**
- **20x25x4 air filter merv 11**20K/yr+29.8%8.7% conv. - **merv 11 20x25x4**8K/yr+22.9%11.4% conv. - **20x25x4 merv 11**5K/yr+28.9%11.2% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/20x25x4-air-filter-merv-11/search-terms)
## **Top 20x25x4 air filter merv 11 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%$27K20%$54K30%$80K40%$107K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 13 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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) [2**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★4,889 rev](https://www.amazon.com/dp/B01MU27I27) [3**Filterbuy 20x25x4 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 19.50 x 24.50 x 3.63)**Filterbuy**$48.89**4.5★20,405 rev](https://www.amazon.com/dp/B00CK03UWS) [4**Simply 20x25x4 Air Filter MERV 11 6 Pack Furnace Air Filter for HVAC (Actual Size:19.5x24.5x3.63) DUST Pet & Allergy Control**Simply**$77.08**4.6★6,555 rev](https://www.amazon.com/dp/B0DP3JZ4KT) [5**Filterbuy 20x25x4 Air Filter MERV 11 Superior Pet & Allergy Defense (4-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 19.50 x 24.50 x 3.63)**Filterbuy**$89.79**4.6★23,863 rev](https://www.amazon.com/dp/B00CJZ69BS)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**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) [**Simply 20x25x4 Air Filter MERV 11 6 Pack Furnace Air Filter for HVAC (Actual Size:19.5x24.5x3.63) DUST Pet & Allergy Control**Simply**$77.08**6,555 rev1y ago](https://www.amazon.com/dp/B0DP3JZ4KT) [**Simply 20x25x4 Air Filter MERV 11 2 Pack Furnace Air Filter for HVAC (Actual Size:19.5x24.5x3.63) DUST Pet & Allergy Control**Simply**$35.11**105 rev1y ago](https://www.amazon.com/dp/B0DP3JVTJ9) [**Simply 20x25x4 Air Filter MERV 11 4 Pack Furnace Air Filter for HVAC (Actual Size:19.5x24.5x3.63) DUST Pet & Allergy Control**Simply**$65.12**182 rev1y ago](https://www.amazon.com/dp/B0DP3HLS9L) [**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 (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★**▲ 78%**](https://www.amazon.com/dp/B0D5RFZCYB) [**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**4.7★**▲ 51%**](https://www.amazon.com/dp/B0G2ZV1X8G) [**Simply 20x25x4 Air Filter MERV 11 4 Pack Furnace Air Filter for HVAC (Actual Size:19.5x24.5x3.63) DUST Pet & Allergy Control**Simply**$65.12**4.6★**▲ 43%**](https://www.amazon.com/dp/B0DP3HLS9L) [**Simply 20x25x4 Air Filter MERV 11 2 Pack Furnace Air Filter for HVAC (Actual Size:19.5x24.5x3.63) DUST Pet & Allergy Control**Simply**$35.11**4.5★**▲ 23%**](https://www.amazon.com/dp/B0DP3JVTJ9) [**Filtrete 20x25x4 Air Filter MERV 12 MPR 1550 Certified Asthma & Allergy Friendly 2-Pack Fits Honeywell & AprilAire AC Furnace HVAC Filters Pleated Electrostatic (Actual Size 19.88x24.63x4.31 in)**Filtrete**$49.68**4.6★**▲ 11%**](https://www.amazon.com/dp/B09RQCWV3L)
**~~View all trending →~~**
## **What buyers say about 20x25x4 air filter merv 11**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**21%
*“Fair price”*
**Filtration**18%
*“Strong filter”*
**Size-Overall**16%
*“Right size and price”*
**Advertised Vs Actual Product**15%
*“As advertised”*
**Quality-Overall**11%
*“Seems to be a good quality filter”*
**Ease Of Use**4%
*“Easy”*
**Strength**1%
*“Super sturdy construction and caught so much dust from entering our ducts”*
**Ease Of Cleaning**1%
*“do a great job capturing dust”*
**Assembly/Installation**1%
*“are very easy to install”*
**Efficiency**1%
*“Worked well for our systmen”*
### **What buyers complain about **
**Size-Overall**59%
*“Doesn't fit”*
**Filtration**15%
*“One of the furnace filters was damaged”*
**Value For Money**5%
*“I just wish they were cheaper”*
**Thickness**4%
*“Not 4 thick”*
**Quality-Overall**2%
*“Spend a couple of bucks more for a better product”*
**Advertised Vs Actual Product**2%
*“These are not 20x25x4 this is false advertising”*
**Heating**2%
*“no way it will cool a whole room”*
**Compatibility-Overall**1%
*“Does not fit correctly or as well as OEM Honeywell”*
**Assembly/Installation**1%
*“rip while installing the first one”*
**Product Condition**1%
*“Amazon Resale came through”*
### **Top return reasons **
**Size-Overall**70%
**Filtration**15%
**Compatibility-Overall**7%
**Value For Money**4%
**Advertised Vs Actual Product**2%
**Thickness**1%
**Defective Material/Parts**1%
**Ease Of Use**0%
**Product Condition**0%
**Certifications**0%
## **Common questions**
- **Is 20x25x4 air filter merv 11 profitable to sell on Amazon United States?**
- The niche generates $268K/yr across 13 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +27.9%. Flapen's verdict: Skip it (48/100).
- **How competitive is the 20x25x4 air filter merv 11 niche?**
- 5 brands and 39 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in 20x25x4 air filter merv 11?**
- Top complaints mined from reviews: Size-Overall, Filtration, Value For Money. The return rate is 1.3%.
- **When does demand for 20x25x4 air filter merv 11 peak?**
- Demand peaks in Oct–Nov; the busiest month runs 4.2× the quietest.
- **What does it cost to enter the 20x25x4 air filter merv 11 niche?**
- Listings span $35.11–$130.14; the average listing price is $77.56 (sweet spot $15–$100). The average incumbent carries 5,187 reviews — the moat a new listing must climb.
## **Related niches in Tools & Home Improvement**
- 73 [**solar outdoor lights**](https://flapen.com/research/us/tools-home-improvement/solar-outdoor-lights)$30.2M/yr+39.8%**Launch it**- 73 [**shower lamp**](https://flapen.com/research/us/tools-home-improvement/shower-lamp)$2.8M/yr+30.2%**Launch it**- 73 [**solar flowers**](https://flapen.com/research/us/tools-home-improvement/solar-flowers)$607K/yr+52.0%**Worth a look**- 73 [**american flag lights**](https://flapen.com/research/us/tools-home-improvement/american-flag-lights)$465K/yr+736.5%**Worth a look**- 73 [**solar fairy lights**](https://flapen.com/research/us/tools-home-improvement/solar-fairy-lights)$3.5M/yr+64.6%**Launch it**- 73 [**solar watering can with cascading lights**](https://flapen.com/research/us/tools-home-improvement/solar-watering-can-with-cascading-lights)$304K/yr+124.3%**Worth a look**[**All Tools & Home Improvement niches **](https://flapen.com/research/us/tools-home-improvement)