x6672
Worth a lookShows low returns (0.7%), but strong incumbent ratings (4.7★) keeps it on the watch list.
Returns
Incredible0.7%return rate — above 5% kills the launch gate
Conversion
Great11.4%search→purchase rate — share of searches ending in a sale
Review moat
Great465.05avg incumbent reviews — the moat a new listing must climb
Avg price
Great$94.43avg listing price — sweet spot $15–$100
Competition
Good52%top-5 click share — leaders hold, buyers still browse
Price range
Okay$51.43–$159.03cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Okay79%top-5 brand share — brands hold most of the demand
Market size
Okay$177K$177K/yr · 16K searches
Growth
Okay+1.3%90-day search growth — must beat 0% to launch
Quality gap
Bad4.7★avg incumbent rating — lower means beatable quality
According to Flapen's Amazon United States niche tracking, x6672 is a $177K/yr Amazon United States market (16K searches/yr). The top 5 brands hold 79% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 27, 2026 · scored weekly · How we score niches
x6672 market data
- Units sold / yr
- 2K–3K
- avg 0–100/product
- Revenue / yr
- $189K–$236K
- units × avg price
- Conversion rate
- 11.4%
- Avg BSR
- #722
- Page quality
- 0%
- Prime
- 75%
- Sponsored
- 100%
- Out of stock
- 5.1%
- Avg brand age
- 41 months
- Avg seller age
- 177 days
Competition & brand share
The top 5 products take 52% of clicks — established leaders, but buyers still shop beyond them.Brands
12 rising
Sellers
19
Top-5 brand share
79%
Top 20: 100%
Top-5 click share
52%
Top 20: 100%
Open market
13%
- HEALTHY CLIMATE24%
- Lennox24%
- Micnce13%
- LINNIW10%
- Pitymody8%
- Foglapius7%
- Open — no brand owns it (6 brands, 13%)
Demand & seasonality
Weekly Amazon search volume, last 103 weeks — +1.3% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.5×
Top x6672 search terms
- merv 16 filter 16x25x55K/yr
- x66725K/yr
- lennox x66723K/yr
- x6672 lennox healthy climate 16x25x5 merv 16 filter4K/yr
Top x6672 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
2 Pack 6672 MERV 16 Filter 16x25x5 Carbon-Clean HVAC Furnace Air Filter Compatible with Lennox HCC16-28 Healthy Climate Home Furnace Filter for HVAC System Part Number HCF16-16 HCF16-10
Micnce$83.254.8★27 rev

Lennox X6672 Healthy Climate 16x25x5 Furnace Filter Merv 16 Carbon Clean Home Air filter for HVAC system 2 Pack with Cleaning Cloth
HEALTHY CLIMATE$157.964.8★334 rev

Lennox X6672 16x25x5 Furnace Filter Lennox Healthy Climate Carbon Clean Merv 16 Home Air filter for HVAC system with Wholesalehome Cleaning Cloth
Lennox$83.604.8★76 rev

Lennox X6672 16x25x5 Healthy Climate Carbon-Clean MERV 16 Filter Bundle with Same Day Supply Filter Change Reminder Magnet (2-Pack)
Lennox$159.034.8★999 rev

Lennox Carbon Coated X6672 Healthy Climate MERV 16 Filter (2 Pack)
HEALTHY CLIMATE$154.844.8★2,490 rev
Newest
by launch date
1 Pack X6672 16x25x5 MERV 16 Filter Compatible with Lennox X6672 HCC16-28 Healthy Climate Clean MERV 16 Home Furnace Filter for HVAC System Part Number HCF16-16 HCF16-10
BesReyDa$57.2731 rev

Vilaso X6672 16x25x5 MERV 16 Filter for Lennox HCC16-28 Air Cleaner 2 Pack
Vilaso$88.8217 rev

DOMICILEPRO Upgraded X6672 MERV 16 Air Filter 16x25x5 Compatible with Lennox X6672 and Lennox HCC16-28 Carbon Clean Furnace Filters HVAC System Part Number HCF16-16 2-Pack
DomicilePro$110.8810 rev

2 Pack 6672 MERV 16 Filter 16x25x5 Carbon-Clean HVAC Furnace Air Filter Compatible with Lennox HCC16-28 Healthy Climate Home Furnace Filter for HVAC System Part Number HCF16-16 HCF16-10
Micnce$83.2527 rev

2 PackX6672 16x25x5 MERV 16 Filter Compatible with Lennox X6672 and Lennox HCC16-28 Healthy Climate Carbon Clean MERV 16 Home Furnace Filter for HVAC System Part Number HCF16-16 HCF16-10
MGCADI$83.0036 rev
Trending
90-day click momentum
1 Pack X6672 16x25x5 MERV 16 Filter Compatible with Lennox X6672 HCC16-28 Healthy Climate Clean MERV 16 Home Furnace Filter for HVAC System Part Number HCF16-16 HCF16-10
BesReyDa$57.274.4★

2 Pack 6672 MERV 16 Filter 16x25x5 Carbon-Clean HVAC Furnace Air Filter Compatible with Lennox HCC16-28 Healthy Climate Home Furnace Filter for HVAC System Part Number HCF16-16 HCF16-10
Micnce$83.254.8★

2 PackX6672 16x25x5 MERV 16 Filter Compatible with Lennox X6672 and Lennox HCC16-28 Healthy Climate Carbon Clean MERV 16 Home Furnace Filter for HVAC System Part Number HCF16-16 HCF16-10
MGCADI$83.004.8★

Lennox X6672 16x25x5 Furnace Filter Lennox Healthy Climate Carbon Clean Merv 16 Home Air filter for HVAC system with Wholesalehome Cleaning Cloth
Lennox$83.604.8★

DOMICILEPRO Upgraded X6672 MERV 16 Air Filter 16x25x5 Compatible with Lennox X6672 and Lennox HCC16-28 Carbon Clean Furnace Filters HVAC System Part Number HCF16-16 2-Pack
DomicilePro$110.884.6★
What buyers say about x6672
What buyers praise and complain about, mined from review topics.What buyers love
“Quality filters”
“fit is snug”
“Good value”
“The build quality is excellent”
“It seems to do the job”
“Effectiveness and reliability”
“Very well built”
“Very convenient”
“installation is simple”
“the corners were clean”
What buyers complain about
“Lesson learned, cheaper is not the way to go”
“Bad Filters”
“they have to be jammed in”
“Material is very thick”
“the filter dimensions of the ones i received from other sellers had dimensions sometimes a couple inches larger than advertised”
“and odors from the neighboring farm”
“The material is not all that thick”
Top return reasons
Common questions
- Is x6672 profitable to sell on Amazon United States?
- The niche generates $177K/yr across 20 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is +1.3%. Flapen's verdict: Worth a look (52/100).
- How competitive is the x6672 niche?
- 12 brands and 19 sellers compete. The top 5 products take 52% of clicks and top 5 brands hold 79% of demand.
- What do buyers complain about in x6672?
- Top complaints mined from reviews: Value For Money, Filtration, Jamming/Clogging. The return rate is 0.7%.
- When does demand for x6672 peak?
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- What does it cost to enter the x6672 niche?
- Listings span $51.43–$159.03; the average listing price is $94.43 (sweet spot $15–$100). The average incumbent carries 465 reviews — the moat a new listing must climb.