honeywell 20x25x4 air filter
Worth a lookShows searches that convert (12.2% search→purchase), but brand-locked demand (top 5 brands take 94% of clicks) keeps it on the watch list.
Conversion
Incredible12.2%search→purchase rate — share of searches ending in a sale
Returns
Great1.1%return rate — above 5% kills the launch gate
Avg price
Great$72.71avg listing price — sweet spot $15–$100
Market size
Great$1.1M$1.1M/yr · 126K searches
Price range
Good$36.11–$130.14cheapest 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
Bad70%top-5 click share — a locked-up shelf
Review moat
Bad6,100.2avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Brand share
Bad94%top-5 brand share — brand-locked demand
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
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.No pronounced peak months · busiest ÷ quietest = 1.4×
Top honeywell 20x25x4 air filter search terms
- honeywell 20x25x4 air filter23K/yr
- honeywell air filter 20x25x420K/yr
- honeywell filter 20x25x417K/yr
- honeywell home air filter 20x25x412K/yr
- 20x25x4 air filter honeywell9K/yr
- honeywell fc100a10378K/yr
- fc100a1037 honeywell filter 20x25x48K/yr
- fc100a10377K/yr
- honeywell 20x25x45K/yr
- honeywell furnace filters 20x25x45K/yr
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.
All 15 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Honeywell FC100A1037 (2 Pack) - 20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder
Honeywell$66.604.8★258 rev
Honeywell FC100A1037-20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (2-Pack)
RESIDEO$68.464.7★62 rev
Honeywell FC100A1037-5 20 x 25 Merv 11 Filter Media (Pack of 5)
Honeywell$129.824.8★1,162 rev
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$44.904.7★1,983 rev
20x25x4 Furnace Filters FC100A1037 Filter Replacement Merv 11 Filter Media with Homequip Disposal Bag (2 Pack)
Homequip$76.354.7★1,088 rev
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$48.4465 rev
Honeywell FC100A1037-20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (2-Pack)
RESIDEO$68.4662 rev
Honeywell FC100A1037-20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (1-Pack)
RESIDEO$41.2662 rev
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$70.5248 rev
Honeywell FC100A1037 (2 Pack) - 20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder
Honeywell$66.60258 rev
Trending
90-day click momentumHoneywell FC100A1037-20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (1-Pack)
RESIDEO$41.264.7★
Honeywell FC100A1037 (2 Pack) - 20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder
Honeywell$66.604.8★
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$48.443.9★
Honeywell FC100A1037-20 x 25 x 4 Pleated Air Filter MERV 11 Bundle with Same Day Supply Filter Change Reminder (2-Pack)
RESIDEO$68.464.7★
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$82.594.6★
What buyers say about honeywell 20x25x4 air filter
What buyers praise and complain about, mined from review topics.What buyers love
“Good filter”
“Great value”
“Perfect size and fit for my AC unit”
“The quality has been consistent”
“As advertised”
“Convenient,”
“Easy to Install Filter”
“Sturdy”
“Works well collecting air particles”
“do a great job capturing dust”
What buyers complain about
“TOO SMALL”
“Barely qualifies as a filter”
“Not Good Quality”
“Thin and cheap”
“I just wish they were cheaper”
“False advertising”
“They were bent”
“Not very well built”
“some of them glued while others not”
“So my mistake was not measuring”
Top return reasons
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.