Is 17.5x23.5x1 air filter profitable to sell on Amazon United States?

The niche generates $164K/yr across 9 tracked products. 90-day search growth is +52.5%. Flapen's verdict: Skip it (47/100).

How competitive is the 17.5x23.5x1 air filter niche?

3 brands and 14 sellers compete. The top 5 products take 91% of clicks and top 5 brands hold 100% of demand.

What do buyers complain about in 17.5x23.5x1 air filter?

Top complaints mined from reviews: Size-Overall. The return rate is 0.7%.

When does demand for 17.5x23.5x1 air filter peak?

Demand peaks in Jun–Jul; the busiest month runs 1.9× the quietest.

What does it cost to enter the 17.5x23.5x1 air filter niche?

Listings span $33.39–$69.49; the average listing price is $44.82 (sweet spot $15–$100). The average incumbent carries 13,732 reviews — the moat a new listing must climb.

17.5x23.5x1 air filter

Skip it

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

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Avg price

Incredible$44.82

avg listing price — sweet spot $15–$100

Price range

Incredible$33.39–$69.49

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

Conversion

Great8.3%

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

Growth

Good+52.5%

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

Market size

Okay$164K

$164K/yr · 44K searches

Review moat

Bad13,732.11

avg incumbent reviews — the moat a new listing must climb

Quality gap

Bad4.7★

avg incumbent rating — lower means beatable quality

Competition

Bad91%

top-5 click share — a locked-up shelf

Brand share

Bad100%

top-5 brand share — brand-locked demand

According to Flapen's Amazon United States niche tracking, 17.5x23.5x1 air filter is a $164K/yr Amazon United States market (44K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jun–Jul. Verdict: Skip it — 47/100.

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

17.5x23.5x1 air filter market data

Units sold / yr: 4K–5K; avg 250–500/product
Revenue / yr: $179K–$224K; units × avg price
Conversion rate: 8.3%
Avg BSR: #107
Page quality: 0%
Prime: 33%
Sponsored: 67%
Out of stock: 0.0%
Avg brand age: 84 months
Avg seller age: 209 days

Competition & brand share

The top 5 products capture 91% of clicks — a locked-up shelf that new listings rarely crack.

Brands

3 flat

Sellers

Top-5 brand share

100%

Top 20: 100%

Top-5 click share

91%

Top 20: 100%

Open market

Filterbuy41%
Filtrete37%
Filter King22%

Demand & seasonality

Weekly Amazon search volume, last 101 weeks — +52.5% search growth over the last 90 days.

Peak months: Jun, Jul · busiest ÷ quietest = 1.9×

Open Trend

Top 17.5x23.5x1 air filter search terms

17.5x23.5x1 air filter19K/yr +50.5%8.6% conv.
air filter 17.5x23.5x19K/yr +50.9%7.5% conv.
ac filter 17.5 x 23.5 x 15K/yr +51.0%13.3% conv.
furnace filters 17.5x23.5x14K/yr +69.8%0.6% conv.
17.5x23.5x1 furnace filter3K/yr +80.7%0.1% conv.
17.5 x 23.5 x 1 air filter4K/yr +28.6%11.1% conv.

All search terms

Top 17.5x23.5x1 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 9 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Filtrete 17.5x23.5x1 Air Filter MERV 11 MPR 1000 Allergens & Pet Dander 3-Month AC and Furnace Filters Cleaner Air Reliable Airflow 4 HVAC Filters (Actual Size 17.18 x 23.18 x 0.81 in)

Filtrete$42.314.8★25,454 rev

Filterbuy 17.5x23.5x1 Air Filter MERV 8 Essential Dust & Allergy Defense (4-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 17.38 x 23.38 x 0.75)

Filterbuy$37.234.6★651 rev

Filter King 17.5x23.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 17.5 x 23.5 x .75)

Filter King$37.694.7★4,436 rev

Filterbuy 17.5x23.5x1 Air Filter MERV 8 Essential Dust & Allergy Defense (6-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 17.38 x 23.38 x 0.75)

Filterbuy$43.604.7★51,098 rev

Filter King 17.5x23.5x1 Air Filter (MERV 8) (3-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 17.5 x 23.5 x .75)

Filter King$33.394.7★30 rev

Newest

by launch date

Filtrete 17.5x23.5x1 AC Furnace Air Filter MPR 700 MERV 8 Tough on Pollen Easy on Airflow 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter 4-Pack (Actual Size 17.19 x 23.19 x 0.81 in)

Filtrete$45.636,265 rev

1y ago

Filter King 17.5x23.5x1 Air Filter (MERV 8) (3-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 17.5 x 23.5 x .75)

Filter King$33.3930 rev

3y ago

Filter King 17.5x23.5x1 Air Filter (MERV 8) (4-Pack) Dust & Allergy Control AC Furnace Filters MADE IN USA HVAC Pleated Electrostatic (Actual Size: 17.5 x 23.5 x .75)

Filter King$37.694,436 rev

3y ago

Filtrete 17.5x23.5x1 AC Furnace Air Filter MERV 11 MPR 1000 Micro Allergen Defense 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter 6 Pack (Actual Size Pack 17.19x23.19x0.81 in)

Filtrete$69.4911,774 rev

8y ago

Filterbuy 17.5x23.5x1 Air Filter MERV 8 Essential Dust & Allergy Defense (4-Pack) Electrostatic Pleated HVAC AC Furnace Filters Replacement Made in USA (Actual Size: 17.38 x 23.38 x 0.75)

Filterbuy$37.23651 rev

13y ago

What buyers say about 17.5x23.5x1 air filter

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

What buyers love

Value For Money25%

“Amazon has the best price”

Durability25%

“Long lasting”

Quality-Overall13%

“High Quality”

Filtration13%

“Good quality filter”

Efficiency13%

“Work well”

Size-Overall13%

“fit as they should”

What buyers complain about

Size-Overall100%

“would not send the filter size that was requested”

Top return reasons

Size-Overall80%

Filtration5%

Compatibility-Overall5%

Advertised Vs Actual Product2%

Value For Money2%

Storage Capacity1%

Functionality-Overall1%

Quality-Overall1%

Weight Heavy1%

Durability1%

Common questions

Is 17.5x23.5x1 air filter profitable to sell on Amazon United States?: The niche generates $164K/yr across 9 tracked products. 90-day search growth is +52.5%. Flapen's verdict: Skip it (47/100).
How competitive is the 17.5x23.5x1 air filter niche?: 3 brands and 14 sellers compete. The top 5 products take 91% of clicks and top 5 brands hold 100% of demand.
What do buyers complain about in 17.5x23.5x1 air filter?: Top complaints mined from reviews: Size-Overall. The return rate is 0.7%.
When does demand for 17.5x23.5x1 air filter peak?: Demand peaks in Jun–Jul; the busiest month runs 1.9× the quietest.
What does it cost to enter the 17.5x23.5x1 air filter niche?: Listings span $33.39–$69.49; the average listing price is $44.82 (sweet spot $15–$100). The average incumbent carries 13,732 reviews — the moat a new listing must climb.