flanders 20x20x1 air filter
Worth a lookShows demand growing +143.8% this quarter, but a small market ($27K/yr) keeps it on the watch list.
Growth
Incredible+143.8%90-day search growth — must beat 0% to launch
Returns
Incredible0.8%return rate — above 5% kills the launch gate
Avg price
Incredible$34.15avg listing price — sweet spot $15–$100
Price range
Great$11.94–$61.70cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Good7.0%search→purchase rate — share of searches ending in a sale
Competition
Okay55%top-5 click share — leaders hold, buyers still browse
Brand share
Okay90%top-5 brand share — brands hold most of the demand
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad14,060.8avg incumbent reviews — the moat a new listing must climb
Market size
Bad$27K$27K/yr · 12K searches
According to Flapen's Amazon United States niche tracking, flanders 20x20x1 air filter is a $27K/yr Amazon United States market (12K searches/yr). The top 5 brands hold 90% of demand. Verdict: Worth a look — 55/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
flanders 20x20x1 air filter market data
- Units sold / yr
- 1K–1K
- avg 0–100/product
- Revenue / yr
- $34K–$43K
- units × avg price
- Conversion rate
- 7.0%
- Avg BSR
- #402
- Page quality
- 0%
- Prime
- 35%
- Sponsored
- 60%
- Out of stock
- 5.9%
- Avg brand age
- 72 months
- Avg seller age
- 191 days
Competition & brand share
The top 5 products take 55% of clicks — established leaders, but buyers still shop beyond them.Brands
10 rising
Sellers
55
Top-5 brand share
90%
Top 20: 100%
Top-5 click share
55%
Top 20: 100%
Open market
7%
- Generic30%
- Flanders24%
- Glasfloss19%
- Amazon Basics11%
- Filtrete6%
- Simply3%
- Open — no brand owns it (4 brands, 7%)
Demand
Weekly Amazon search volume, last 48 weeks — +143.8% search growth over the last 90 days.Top flanders 20x20x1 air filter search terms
- 20x20x1 fiberglass air filters6K/yr
- 20x20x1 air filter merv 43K/yr
- flanders 20x20x1 air filter3K/yr
Top flanders 20x20x1 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 20 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
20x20x1 Fiberglass Air Filters 6-Pack AC & Furnace Glasfloss
Glasfloss$32.244.7★808 rev
20 x 20 x 1 Fiberglass Air Filter MERV 1 (4-pack)
Generic$29.844.7★308 rev
20 x 20 x 1 Nested Fiberglass MERV 1 Air Filter(4-Pack)
Generic$13.704.6★13 rev
20X20X1 Fiberglass EZ Flow II
Flanders$41.174.6★1,623 rev
Flanders Fiberglass Air Filter - Panel Replacement Furnace Filter For Furnace & AC - 20 x 20 x 1
Flanders$46.304.5★212 rev
Newest
by launch date
20x20x1 MERV 1 Air Filter 4-Pack Nested Fiberglass HVAC Filters with 30-Day Long-Lasting Performance Heavy-Duty One-Piece Chipboard Frame Low Pressure Drop for Energy Efficiency
Generic$12.590 rev
4 Pack 20x20x1 Nested Fiberglass Air Filter Disposable AC Furnace HVAC Air Filter Replacement
Generic$13.233 rev
Nested Fiberglass HVAC Filter 20x20x1 Inch MERV 1 4 Count
Generic$11.942 rev
20 x 20 x 1 Nested Fiberglass MERV 1 Air Filter(4-Pack)
Generic$13.7013 rev
Amazon Basics MERV 5 AC Furnace Air Filter 20x20x1 inches 6-Pack (Actual size: 19.75 x 19.75 x 0.75)
Amazon Basics$29.4917,081 rev
Trending
90-day click momentumNested Fiberglass HVAC Filter 20x20x1 Inch MERV 1 4 Count
Generic$11.945.0★
20 x 20 x 1 Nested Fiberglass MERV 1 Air Filter(4-Pack)
Generic$13.704.6★
4 Pack 20x20x1 Nested Fiberglass Air Filter Disposable AC Furnace HVAC Air Filter Replacement
Generic$13.235.0★
20x20x1 MERV 1 Air Filter 4-Pack Nested Fiberglass HVAC Filters with 30-Day Long-Lasting Performance Heavy-Duty One-Piece Chipboard Frame Low Pressure Drop for Energy Efficiency
Generic$12.590.0★
20x20x1 Fiberglass Air Filters 12-Pack AC & Furnace Glasfloss
Glasfloss$46.404.5★
What buyers say about flanders 20x20x1 air filter
What buyers praise and complain about, mined from review topics.What buyers love
“Good Quality Filters”
“Great deal”
“they're well-made”
“Fits great”
“As advertised”
“Effective”
“Easy to use”
“Well made and seems more sturdy than some brand name filters I have previously purchased”
“easy to install”
“Functional and durable”
What buyers complain about
“Terrible filtration”
“Bad quality”
“smaller than the standard size”
“Not sturdy”
“Filter is too thick”
“These are way over priced”
“Frame and cardboard parts get hung up, otherwise not bad”
“Not the size advertised in the description”
“the system became louder a clear sign of poor construction”
“It bends and the paper tearing itself apart during installation”
Top return reasons
Common questions
- Is flanders 20x20x1 air filter profitable to sell on Amazon United States?
- The niche generates $27K/yr across 20 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is +143.8%. Flapen's verdict: Worth a look (55/100).
- How competitive is the flanders 20x20x1 air filter niche?
- 10 brands and 55 sellers compete. The top 5 products take 55% of clicks and top 5 brands hold 90% of demand.
- What do buyers complain about in flanders 20x20x1 air filter?
- Top complaints mined from reviews: Filtration, Quality-Overall, Size-Overall. The return rate is 0.8%.
- What does it cost to enter the flanders 20x20x1 air filter niche?
- Listings span $11.94–$61.70; the average listing price is $34.15 (sweet spot $15–$100). The average incumbent carries 14,061 reviews — the moat a new listing must climb.