24x24x4 air filter
Worth a lookShows low returns (0.1%), but brand-locked demand (top 5 brands take 98% of clicks) keeps it on the watch list.
Returns
Incredible0.1%return rate — above 5% kills the launch gate
Conversion
Incredible12.6%search→purchase rate — share of searches ending in a sale
Avg price
Great$77.51avg listing price — sweet spot $15–$100
Price range
Good$11.12–$128.02cheapest to priciest tracked listing — scored on the share inside $15–$100
Growth
Okay+20.0%90-day search growth — must beat 0% to launch
Competition
Okay61%top-5 click share — leaders hold, buyers still browse
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$139K$139K/yr · 14K searches
Review moat
Bad9,126.41avg incumbent reviews — the moat a new listing must climb
Brand share
Bad98%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, 24x24x4 air filter is a $139K/yr Amazon United States market (14K searches/yr). The top 5 brands hold 98% of demand. Demand peaks in Jul. Verdict: Worth a look — 50/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
24x24x4 air filter market data
- Units sold / yr
- 2K–2K
- avg 100–250/product
- Revenue / yr
- $116K–$155K
- units × avg price
- Conversion rate
- 12.6%
- Avg BSR
- #277
- Page quality
- 0%
- Prime
- 18%
- Sponsored
- 94%
- Out of stock
- 0.0%
- Avg brand age
- 72 months
- Avg seller age
- 205 days
Competition & brand share
The top 5 products take 61% of clicks — established leaders, but buyers still shop beyond them.Brands
6 flat
Sellers
6
Top-5 brand share
98%
Top 20: 100%
Top-5 click share
61%
Top 20: 100%
Open market
0%
- Filterbuy56%
- MANN+HUMMEL16%
- Aerostar15%
- Glasfloss9%
- Simply2%
- FilterTime2%
Demand & seasonality
Weekly Amazon search volume, last 102 weeks — +20.0% search growth over the last 90 days.Peak months: Jul · busiest ÷ quietest = 1.7×
Top 24x24x4 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 17 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Filterbuy 24x24x4 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 23.38 x 23.38 x 3.63)
Filterbuy$54.204.6★68,921 rev
Aerostar 24x24x4 MERV 8 - 6 Count - High Efficiency Pleated HVAC Furnace & Air Conditioner Filters - Removes Dust Lint Mold & Allergy-Causing Pollen
Aerostar$112.514.0★23 rev
Filterbuy 24x24x4 Air Filter MERV 11 Superior Pet & Allergy Defense (2-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 23.38 x 23.38 x 3.63)
Filterbuy$63.274.5★20,405 rev
Filterbuy 24x24x4 Air Filter MERV 13 Optimal Smoke & Allergy Defense (2-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 23.38 x 23.38 x 3.63)
Filterbuy$71.344.5★159 rev
MANN+HUMMEL 24x24x4 MERV 8 Pleated 4 AC Furnace Air Filter. Case of 6
MANN+HUMMEL$101.385.0★2 rev
Newest
by launch date
FilterTime 24x24x4 AC Furnace Air Filter MERV 8 1-Pack (exact dimensions 23.5 x 23.5 x 3.75) AC Filter Furnace Filter Home Air Filter Made in USA.
FilterTime$26.5312 rev
Simply 24x24x4 Air Filter MERV 11 6 Pack Furnace Air Filter for HVAC (Actual Size: 23.5x23.5x3.63) DUST Pet & Allergy Control
Simply$100.076,555 rev
MANN+HUMMEL 24x24x4 MERV 8 Pleated 4 AC Furnace Air Filter. Case of 6
MANN+HUMMEL$101.382 rev
MANN+HUMMEL 24x24x4 MERV 8 Pleated 4 AC Furnace Air Filter. 3 Pack
MANN+HUMMEL$54.80265 rev
MANN+HUMMEL 24x24x4 MERV 8 Pleated 4 AC Furnace Air Filter. 2 Pack
MANN+HUMMEL$43.19437 rev
Trending
90-day click momentumSimply 24x24x4 Air Filter MERV 11 6 Pack Furnace Air Filter for HVAC (Actual Size: 23.5x23.5x3.63) DUST Pet & Allergy Control
Simply$100.074.6★
FilterTime 24x24x4 AC Furnace Air Filter MERV 8 1-Pack (exact dimensions 23.5 x 23.5 x 3.75) AC Filter Furnace Filter Home Air Filter Made in USA.
FilterTime$26.534.2★
Aerostar 24x24x4 MERV 8 High Efficiency Pleated Air Filter 4-Pack Electrostatic AC Furnace HVAC Replacement Captures Dust Pollen Pet Dander Mold Lint (23.375x23.375x3.75)
Aerostar$11.124.2★
Aerostar 24x24x4 MERV 8 - 6 Count - High Efficiency Pleated HVAC Furnace & Air Conditioner Filters - Removes Dust Lint Mold & Allergy-Causing Pollen
Aerostar$112.514.0★
Aerostar 24x24x4 MERV 11 - 6 Count - Pleated HVAC Furnace & Air Conditioner Filters - Removes Dust Cold & Flu Germs Lint Mold Pet Dander Allergy-Causing Pollen Smog & Smoke
Aerostar$128.024.4★
What buyers say about 24x24x4 air filter
What buyers praise and complain about, mined from review topics.What buyers love
“They fit well”
“Easy Filter”
“Its great for the price”
“keep things clean”
What buyers complain about
“they don't fit properly”
Top return reasons
Common questions
- Is 24x24x4 air filter profitable to sell on Amazon United States?
- The niche generates $139K/yr across 17 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +20.0%. Flapen's verdict: Worth a look (50/100).
- How competitive is the 24x24x4 air filter niche?
- 6 brands and 6 sellers compete. The top 5 products take 61% of clicks and top 5 brands hold 98% of demand.
- What do buyers complain about in 24x24x4 air filter?
- Top complaints mined from reviews: Size-Overall. The return rate is 0.1%.
- When does demand for 24x24x4 air filter peak?
- Demand peaks in Jul; the busiest month runs 1.7× the quietest.
- What does it cost to enter the 24x24x4 air filter niche?
- Listings span $11.12–$128.02; the average listing price is $77.51 (sweet spot $15–$100). The average incumbent carries 9,126 reviews — the moat a new listing must climb.