Is 16x20x5 air filter profitable to sell on Amazon United States?

The niche generates $90K/yr across 14 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +24.8%. Flapen's verdict: Skip it (47/100).

How competitive is the 16x20x5 air filter niche?

4 brands and 7 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in 16x20x5 air filter?

Top complaints mined from reviews: Filtration, Size-Overall, Allergies. The return rate is 0.8%.

When does demand for 16x20x5 air filter peak?

Demand peaks in Jul; the busiest month runs 1.6× the quietest.

What does it cost to enter the 16x20x5 air filter niche?

Listings span $35.29–$100.69; the average listing price is $60.69 (sweet spot $15–$100). The average incumbent carries 2,446 reviews — the moat a new listing must climb.

16x20x5 air filter

Skip it

Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.

Returns

Incredible0.8%

return rate — above 5% kills the launch gate

Conversion

Great11.6%

search→purchase rate — share of searches ending in a sale

Price range

Great$35.29–$100.69

cheapest to priciest tracked listing — scored on the share inside $15–$100

Avg price

Great$60.69

avg listing price — sweet spot $15–$100

Growth

Good+24.8%

90-day search growth — must beat 0% to launch

Review moat

Okay2,445.79

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.6★

avg incumbent rating — lower means beatable quality

Market size

Bad$90K

$90K/yr · 13K searches

Competition

Bad76%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

Signals High Price

According to Flapen's Amazon United States niche tracking, 16x20x5 air filter is a $90K/yr Amazon United States market (13K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jul. Verdict: Skip it — 47/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

16x20x5 air filter market data

Units sold / yr: 2K–2K; avg 100–250/product
Revenue / yr: $91K–$121K; units × avg price
Conversion rate: 11.6%
Avg BSR: #623
Page quality: 0%
Prime: 57%
Sponsored: 79%
Out of stock: 0.0%
Avg brand age: 60 months
Avg seller age: 190 days

Competition & brand share

The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.

Brands

4 falling

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

76%

Top 20: 100%

Open market

AIRx Filters48%
Filterbuy38%
Nordic Pure11%
Merv King3%
Open — no brand owns it (0%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +24.8% search growth over the last 90 days.

Peak months: Jul · busiest ÷ quietest = 1.6×

Open Trend

Top 16x20x5 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 14 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Filterbuy 16x20x5 Air Filter MERV 8 Essential Dust & Allergy Defense (2-Pack) Pleated HVAC AC Furnace Filters for Honeywell FC100A1003 Lennox X0592 and More (Actual Size: 15.75 x 19.75 x 4.38)

Filterbuy$59.014.6★19,747 rev

AIRX FILTERS WICKED CLEAN AIR. 16x20x5 Air Filter MERV 11 Compatible with ReservePro 4350 Furnace Filter 2 Pack

AIRx Filters$54.274.7★109 rev

AIRx Filters 16x20x5 MERV 11 HVAC AC Furnace Air Filter Replacement for Lennox X0582 Allergy 2-Pack Made in the USA

AIRx Filters$58.834.6★142 rev

Nordic Pure 16x20x5 Honeywell/Lennox Replacement MERV 12 Air Filter 1 Pack

Nordic Pure$35.294.8★5 rev

AIRX FILTERS WICKED CLEAN AIR. 16x20x5 Air Filter MERV 11 Compatible with Honeywell FC100A1003 Furnace Filter 2 Pack

AIRx Filters$56.914.5★136 rev

Newest

by launch date

Nordic Pure 16x20x5 Honeywell/Lennox Replacement MERV 12 Air Filter 1 Pack

Nordic Pure$35.295 rev

8mo ago

Nordic Pure 16x20x5 Honeywell/Lennox Replacement MERV 12 Air Filter 2 Pack

Nordic Pure$58.682 rev

8mo ago

MervKing 16x20x5 Air Filter Actual Size: 15.88 x 19.88 x 4.38 MERV 8 MPR 600-700 | MADE IN USA | 2-Pack | Pleated HVAC AC Furnace Replacement

Merv King$47.2578 rev

1y ago

AIRX FILTERS WICKED CLEAN AIR. 16x20x5 Air Filter MERV 11 Compatible with ReservePro 4350 Furnace Filter 2 Pack

AIRx Filters$54.27109 rev

2y ago

AIRX FILTERS WICKED CLEAN AIR. 16x20x5 Air Filter MERV 11 Compatible with Honeywell FC100A1003 Furnace Filter 2 Pack

AIRx Filters$56.91136 rev

2y ago

What buyers say about 16x20x5 air filter

What buyers praise and complain about, mined from review topics.

What buyers love

Size-Overall32%

“Fit just right”

Filtration28%

“Easy to use filters”

Quality-Overall18%

“Made well and works well for me w/alot of pets”

Value For Money13%

“good product for the price”

Advertised Vs Actual Product3%

“Just what I was looking for”

Ease Of Use2%

“Easy to use filters”

Assembly/Installation1%

“They were easy to install”

Strength1%

“They are sturdy”

What buyers complain about

Filtration33%

“it's actually 4-3/8 so the other nominal 4 filters I bought were too thin”

Size-Overall17%

“The size seems a little to tall when first out of the box -”

Allergies7%

“I noticed within a few days that my allergies have all”

Top return reasons

Size-Overall78%

Filtration14%

Compatibility-Overall4%

Advertised Vs Actual Product2%

Value For Money2%

Maintenance And Repair1%

Thickness1%

Defective Material/Parts1%

Quality-Overall1%

Ease Of Use0%

Common questions

Is 16x20x5 air filter profitable to sell on Amazon United States?: The niche generates $90K/yr across 14 tracked products. 0 of 2 products launched in the last 360 days are still selling. 90-day search growth is +24.8%. Flapen's verdict: Skip it (47/100).
How competitive is the 16x20x5 air filter niche?: 4 brands and 7 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in 16x20x5 air filter?: Top complaints mined from reviews: Filtration, Size-Overall, Allergies. The return rate is 0.8%.
When does demand for 16x20x5 air filter peak?: Demand peaks in Jul; the busiest month runs 1.6× the quietest.
What does it cost to enter the 16x20x5 air filter niche?: Listings span $35.29–$100.69; the average listing price is $60.69 (sweet spot $15–$100). The average incumbent carries 2,446 reviews — the moat a new listing must climb.