merv 11 air filters 20x25x5
Worth a lookShows searches that convert (20.6% search→purchase), but a concentrated shelf (top 5 take 86% of clicks) keeps it on the watch list.
Conversion
Incredible20.6%search→purchase rate — share of searches ending in a sale
Returns
Great1.1%return rate — above 5% kills the launch gate
Growth
Great+102.8%90-day search growth — must beat 0% to launch
Avg price
Great$77.33avg listing price — sweet spot $15–$100
Price range
Great$46.52–$116.86cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Okay3,030.7avg incumbent reviews — the moat a new listing must climb
Market size
Bad$79K$79K/yr · 5K searches
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
Brand share
Bad94%top-5 brand share — brand-locked demand
Competition
Bad86%top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, merv 11 air filters 20x25x5 is a $79K/yr Amazon United States market (5K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Oct–Nov. Verdict: Worth a look — 51/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
merv 11 air filters 20x25x5 market data
- Units sold / yr
- 1K–1K
- avg 100–250/product
- Revenue / yr
- $77K–$97K
- units × avg price
- Conversion rate
- 20.6%
- Avg BSR
- #336
- Page quality
- 0%
- Prime
- 20%
- Sponsored
- 80%
- Out of stock
- 0.0%
- Avg brand age
- 70 months
- Avg seller age
- 209 days
Competition & brand share
The top 5 products capture 86% of clicks — a locked-up shelf that new listings rarely crack.Brands
7 rising
Sellers
20
Top-5 brand share
94%
Top 20: 100%
Top-5 click share
86%
Top 20: 100%
Open market
3%
- GeneralAire58%
- YGACHE21%
- Filterbuy9%
- AirPurete3%
- General Filters3%
- Minibird3%
- Open — no brand owns it (1 brand, 3%)
Demand & seasonality
Weekly Amazon search volume, last 102 weeks — +102.8% search growth over the last 90 days.Peak months: Oct, Nov · busiest ÷ quietest = 2.8×
Top merv 11 air filters 20x25x5 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 10 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
GeneralAire # 4551 for 4501 ReservePro 20x25x5 furnace filter Actual Size:19 5/8 x 24 3/16 x 4 15/16 - Case of 3 Filters
GeneralAire$116.674.7★218 rev

Generalaire 6FM2025 Reservepro 4551 Air Filter-20x 25x 5-Genuine OEM Replacement for Old 4501
YGACHE$49.624.6★62 rev

Filterbuy 20x25x5 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack) Pleated HVAC AC Furnace Filters for Honeywell FC100A1037 Lennox X6673 and More (Actual Size: 19.88 x 24.75 x 4.38)
Filterbuy$54.594.6★13,433 rev

GeneralAire # 4551 20x25x5 furnace filter -Exact Dimensions are 19 5/8x 24 3/16x 4 15/16- Please Measure Carefully Before Ordering !-case of 2 filters
GeneralAire$81.694.8★374 rev

AirPurete 20x25x5 MERV 11 Air Filter Replacement for GeneralAire 4551 Trion 259112-102 MAC 2000 and More Pleated Furnace Filter (Actual Size: 19 5/8 x 24 3/16 x 4 15/16) | Pack of 2
AirPurete$68.254.8★9 rev
Newest
by launch date
AirPurete 20x25x5 MERV 11 Air Filter Replacement for GeneralAire 4551 Trion 259112-102 MAC 2000 and More Pleated Furnace Filter (Actual Size: 19 5/8 x 24 3/16 x 4 15/16) | Pack of 2
AirPurete$68.259 rev

GeneralAire # 4551 for 4501 ReservePro 20x25x5 furnace filter -Exact Dimensions are 19 5/8x 24 3/16x 4 15/16- Please Measure Carefully Before Ordering !-
General Filters$49.725 rev

Filtrete 20x25x5 Air Filter MERV 11 MPR 1000 Micro Allergen Defense 2-Pack Fits Lennox AC Furnace HVAC Filters for Home Pleated Electrostatic (Actual Size 19.63 x 24.75 x 4.31 in)
Filtrete$46.522,304 rev

GeneralAire # 4551 for 4501 ReservePro 20x25x5 furnace filter Actual Size:19 5/8 x 24 3/16 x 4 15/16 - Case of 3 Filters
GeneralAire$116.67218 rev

Generalaire 6FM2025 Reservepro 4551 Air Filter-20x 25x 5-Genuine OEM Replacement for Old 4501
YGACHE$49.6262 rev
Trending
90-day click momentum
AirPurete 20x25x5 MERV 11 Air Filter Replacement for GeneralAire 4551 Trion 259112-102 MAC 2000 and More Pleated Furnace Filter (Actual Size: 19 5/8 x 24 3/16 x 4 15/16) | Pack of 2
AirPurete$68.254.8★

3-pk 6FM2025 #4551 Air Filter-20x 25x 5-Genuine Replacement for old #4501-Please Measure Carefully Before OrderingF
Minibird$116.864.9★

GeneralAire # 4551 for 4501 ReservePro 20x25x5 furnace filter Actual Size:19 5/8 x 24 3/16 x 4 15/16 - Case of 3 Filters
GeneralAire$116.674.7★

Generalaire 6FM2025 Reservepro 4551 Air Filter-20x 25x 5-Genuine OEM Replacement for Old 4501
YGACHE$49.624.6★

Filterbuy 20x25x5 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack) Pleated HVAC AC Furnace Filters for Honeywell FC100A1037 Lennox X6673 and More (Actual Size: 19.88 x 24.75 x 4.38)
Filterbuy$54.594.6★
What buyers say about merv 11 air filters 20x25x5
What buyers praise and complain about, mined from review topics.What buyers love
“Im sure this filter is just as good as any other”
“Good filter”
“Fits perfectly”
“Money well spent”
“As advertised”
“Works well”
“Easy install”
“Quality and durability outstanding”
What buyers complain about
“Didn't fit”
“Not all filters are the same”
“Does not fit Lennox EL296UHV”
“just more expensive”
“a bit too thin”
“I would expect better quality assurance”
“Shame on me for not reading the spec sheet carefully”
“Money down the drain”
“that did not work out”
“O. Don't buy this its not a true 20x25x5 clearly they don't haven't measured this”
Top return reasons
Common questions
- Is merv 11 air filters 20x25x5 profitable to sell on Amazon United States?
- The niche generates $79K/yr across 10 tracked products. 90-day search growth is +102.8%. Flapen's verdict: Worth a look (51/100).
- How competitive is the merv 11 air filters 20x25x5 niche?
- 7 brands and 20 sellers compete. The top 5 products take 86% of clicks and top 5 brands hold 94% of demand.
- What do buyers complain about in merv 11 air filters 20x25x5?
- Top complaints mined from reviews: Size-Overall, Filtration, Compatibility-Overall. The return rate is 1.1%.
- When does demand for merv 11 air filters 20x25x5 peak?
- Demand peaks in Oct–Nov; the busiest month runs 2.8× the quietest.
- What does it cost to enter the merv 11 air filters 20x25x5 niche?
- Listings span $46.52–$116.86; the average listing price is $77.33 (sweet spot $15–$100). The average incumbent carries 3,031 reviews — the moat a new listing must climb.