honeywell 20x20x4 air filter
Skip itStrong incumbent ratings (4.7★) — this niche doesn't clear our bar today.
Conversion
Incredible12.2%search→purchase rate — share of searches ending in a sale
Avg price
Great$78.24avg listing price — sweet spot $15–$100
Returns
Great1.6%return rate — above 5% kills the launch gate
Review moat
Good573.8avg incumbent reviews — the moat a new listing must climb
Price range
Good$36.65–$158.45cheapest to priciest tracked listing — scored on the share inside $15–$100
Market size
Okay$269K$269K/yr · 28K searches
Competition
Okay67%top-5 click share — leaders hold, buyers still browse
Brand share
Okay90%top-5 brand share — brands hold most of the demand
Growth
Bad-4.2%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, honeywell 20x20x4 air filter is a $269K/yr Amazon United States market (28K searches/yr). The top 5 brands hold 90% of demand. Verdict: Skip it — 48/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
honeywell 20x20x4 air filter market data
- Units sold / yr
- 4K–5K
- avg 250–500/product
- Revenue / yr
- $313K–$391K
- units × avg price
- Conversion rate
- 12.2%
- Avg BSR
- #373
- Page quality
- 0%
- Prime
- 40%
- Sponsored
- 80%
- Out of stock
- 10.6%
- Avg brand age
- 58 months
- Avg seller age
- 181 days
Competition & brand share
The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.Brands
8 rising
Sellers
40
Top-5 brand share
90%
Top 20: 100%
Top-5 click share
67%
Top 20: 100%
Open market
6%
- Honeywell31%
- RESIDEO28%
- Wholesalehome12%
- Honeywell Home11%
- Filtrete7%
- DerBlue4%
- Open — no brand owns it (2 brands, 6%)
Demand & seasonality
Weekly Amazon search volume, last 103 weeks — -4.2% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.5×
Top honeywell 20x20x4 air filter search terms
- honeywell 20x20x4 air filter9K/yr
- honeywell filter 20x20x44K/yr
- fc100a10113K/yr
- 20x20x4 air filter honeywell4K/yr
- honeywell fc100a10113K/yr
- honeywell 20x20x4 air filter merv 113K/yr
- honeywell air filter 20x20x43K/yr
Top honeywell 20x20x4 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.
All 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Honeywell FC100A1011-20 x 20 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (2-Pack)
RESIDEO$67.994.9★59 rev
Honeywell FC100A1011-20 x 20 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (2)
Honeywell$67.204.7★109 rev
20x20x4 Air Filter Replacement MERV 11 FC100A1011 Pleated HVAC AC Furnace Filters with Wholesalehome Cleaning Cloth 2-Pack (Actual Size: 19.94 x 19.75 x 4.38 Inches)
Wholesalehome$67.505.0★30 rev
Honeywell FC100A1011 20 x 20 x 4 replacement media air furnace filter
Honeywell Home$36.654.6★1,360 rev
Honeywell FC100A1011 Replacement Media Air Furnace Filter MERV 11 20 x 20 x 4.5 in 4 Packages
Honeywell$117.724.7★79 rev
Newest
by launch dateHoneywell FC100A1011-20 x 20 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (2-Pack)
RESIDEO$67.9959 rev
Honeywell FC100A1011-20 x 20 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (5-Pack)
RESIDEO$157.0359 rev
Honeywell FC100A1011-20 x 20 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (1-Pack)
RESIDEO$40.7959 rev
20x20x4 Air Filter Replacement MERV 11 FC100A1011 Pleated HVAC AC Furnace Filters with Wholesalehome Cleaning Cloth 2-Pack (Actual Size: 19.94 x 19.75 x 4.38 Inches)
Wholesalehome$67.5030 rev
BETTFILTER 20x20x4 AC Furnace Air Filter Compatible with Honeywell FC100A1011 MERV 11 HAVC Filter Replacement Actual Size:19.94x19.75x4.38 Pack of 2
BETTFILTER$52.3329 rev
Trending
90-day click momentumHoneywell FC100A1011-20 x 20 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (5-Pack)
RESIDEO$157.034.9★
Honeywell FC100A1011 Media GENUINE OEM 2-Pack Special
Honeywell$58.194.7★
20x20x4 Air Filter Replacement MERV 11 FC100A1011 Pleated HVAC AC Furnace Filters with Wholesalehome Cleaning Cloth 2-Pack (Actual Size: 19.94 x 19.75 x 4.38 Inches)
Wholesalehome$67.505.0★
Honeywell FC100A1011-20 x 20 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (1-Pack)
RESIDEO$40.794.9★
Honeywell FC100A1011-20 x 20 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (2)
Honeywell$67.204.7★
What buyers say about honeywell 20x20x4 air filter
What buyers praise and complain about, mined from review topics.What buyers love
“Exact fit”
“Filters work great”
“As advertised”
“The quality of the filter material is about on par with the mass market”
“Saves me money”
“Work great”
“Works, and a lot cheaper then what the ac company was going to charge me”
“Used them for years”
“Easy to assemble”
“It is just sturdy enough to hold together”
What buyers complain about
“Larger than listed”
“The filters do not fit”
“Does nor look as good as other brands”
“Will not fit”
“it barely lasted 6 months”
“Also comes unassembled”
“Didn't work for me”
“This product was wider than advertised”
“Never operate in your heating”
“the filter is one thin layer thick”
Top return reasons
Common questions
- Is honeywell 20x20x4 air filter profitable to sell on Amazon United States?
- The niche generates $269K/yr across 15 tracked products. 3 of 5 products launched in the last 360 days are still selling. 90-day search growth is -4.2%. Flapen's verdict: Skip it (48/100).
- How competitive is the honeywell 20x20x4 air filter niche?
- 8 brands and 40 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 90% of demand.
- What do buyers complain about in honeywell 20x20x4 air filter?
- Top complaints mined from reviews: Size-Overall, Filtration, Quality-Overall. The return rate is 1.6%.
- When does demand for honeywell 20x20x4 air filter peak?
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- What does it cost to enter the honeywell 20x20x4 air filter niche?
- Listings span $36.65–$158.45; the average listing price is $78.24 (sweet spot $15–$100). The average incumbent carries 574 reviews — the moat a new listing must climb.