---
title: "Subzero Air Purification Cartridge — $436K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/appliances/subzero-air-purification-cartridge"
last_updated: "2026-08-09T08:42:32.288Z"
locale: en
meta:
description: "Niche score 44/100 · $436K/yr market · 28K searches/yr · $66.70 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · $436K/yr market · 28K searches/yr · $66.70 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Subzero Air Purification Cartridge — $436K/yr Amazon US Niche (2026) - Flapen"
---
# **subzero air purification cartridge**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 57Growth 34Conversion 100Competition 3Returns 62Price range 71Avg price 87Brand share 0Review moat 74Quality gap 25
**Conversion**
**Incredible****23.7%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Great****$66.70**
avg listing price — sweet spot $15–$100
**Review moat**
**Good****551.33**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Good****$35.05–$126.94**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Returns**
**Good****2.5%**
return rate — above 5% kills the launch gate
**Market size**
**Good****$436K**
$436K/yr · 28K searches
**Growth**
**Okay****+7.0%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****96%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, subzero air purification cartridge is a $436K/yr Amazon United States market (28K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Jan. Verdict: Skip it — 44/100.
Data updated Jul 6, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **subzero air purification cartridge market data**
- **Units sold / yr**
- **6K–8K**
- avg 1,250–1,500/product
- **Revenue / yr**
- **$400K–$534K**
- units × avg price
- **Conversion rate**
- **23.7%**
- **Avg BSR**
- **#98**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **37 months**
- **Avg seller age**
- **223 days**
## **Competition & brand share**
The top 5 products capture 96% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**3 **—flat
**Sellers**
**8**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**96%**
Top 20: 100%
**Open market**
**0%**
- SUB-ZERO70% - GLACIER FRESH26% - Crystala Filters4% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 109 weeks — +7.0% search growth over the last 90 days.
800600Spike '24Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Jan · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/appliances/subzero-air-purification-cartridge/trend)
## **Top subzero air purification cartridge 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.
0%15%$65K30%$131K45%$196K60%$262K101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 6 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Sub-Zero Air Purification Cartridge-7042798**SUB-ZERO**$64.54**4.5★766 rev](https://www.amazon.com/dp/B091Q9TKVG) [2**GLACIER FRESH Replacement for Sub-Zero Refrigerator (2 Pack)**GLACIER FRESH**$56.12**4.7★711 rev](https://www.amazon.com/dp/B082P3MK6Y) [3**Sub-Zero Refrigerator Replacement Water and Air Filter Combo Pack 4204490 7007067**SUB-ZERO**$126.94**4.4★334 rev](https://www.amazon.com/dp/B0CL8BHRS3) [4**GLACIER FRESH 4204490 Filter and 7007067 Air Purification Cartridge (1+1)**GLACIER FRESH**$70.40**4.7★711 rev](https://www.amazon.com/dp/B098NKZQL5) [5**GLACIER FRESH Replacement for Sub-Zero Refrigerator (1 Pack)**GLACIER FRESH**$35.05**4.7★711 rev](https://www.amazon.com/dp/B082HMG1L9)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Sub-Zero Refrigerator Replacement Water and Air Filter Combo Pack 4204490 7007067**SUB-ZERO**$126.94**334 rev2y ago](https://www.amazon.com/dp/B0CL8BHRS3) [**Crystala Filters Replacement For Sub-Zero Refrigerator Air Purification Cartridge 7042798 7007076 7007067 Air Filter (Pack of 2)**Crystala Filters**$47.15**75 rev4y ago](https://www.amazon.com/dp/B09V534QRQ) [**GLACIER FRESH 4204490 Filter and 7007067 Air Purification Cartridge (1+1)**GLACIER FRESH**$70.40**711 rev5y ago](https://www.amazon.com/dp/B098NKZQL5) [**Sub-Zero Air Purification Cartridge-7042798**SUB-ZERO**$64.54**766 rev5y ago](https://www.amazon.com/dp/B091Q9TKVG) [**GLACIER FRESH Replacement for Sub-Zero Refrigerator (2 Pack)**GLACIER FRESH**$56.12**711 rev6y ago](https://www.amazon.com/dp/B082P3MK6Y)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**GLACIER FRESH 4204490 Filter and 7007067 Air Purification Cartridge (1+1)**GLACIER FRESH**$70.40**4.7★**▲ 59%**](https://www.amazon.com/dp/B098NKZQL5) [**Crystala Filters Replacement For Sub-Zero Refrigerator Air Purification Cartridge 7042798 7007076 7007067 Air Filter (Pack of 2)**Crystala Filters**$47.15**4.6★**▲ 19%**](https://www.amazon.com/dp/B09V534QRQ) [**Sub-Zero Refrigerator Replacement Water and Air Filter Combo Pack 4204490 7007067**SUB-ZERO**$126.94**4.4★**▲ 13%**](https://www.amazon.com/dp/B0CL8BHRS3) [**GLACIER FRESH Replacement for Sub-Zero Refrigerator (2 Pack)**GLACIER FRESH**$56.12**4.7★**— 0%**](https://www.amazon.com/dp/B082P3MK6Y) [**Sub-Zero Air Purification Cartridge-7042798**SUB-ZERO**$64.54**4.5★**— 6%**](https://www.amazon.com/dp/B091Q9TKVG)
**~~View all trending →~~**
## **What buyers say about subzero air purification cartridge**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**20%
*“fit perfect”*
**Advertised Vs Actual Product**19%
*“As advertised”*
**Value For Money**18%
*“reasonable price”*
**Quality-Overall**17%
*“Excellent product”*
**Air Purification**6%
*“The air filter is the authorized”*
**Efficiency**6%
*“Works fine”*
**Filtration**5%
*“the branded filter works perfectly”*
**Assembly/Installation**4%
*“so easy to install”*
**Smell**4%
*“so now I know thats why it always smells fresh”*
**Ease Of Use**1%
*“Easy to Use and Replace”*
### **What buyers complain about **
**Filtration**42%
*“The air purifier was damaged”*
**Product Condition**19%
*“Looked used”*
**Quality-Overall**8%
*“Quality issue with original delivery”*
**Noise Level**8%
*“This cartridge rattles”*
**Ethical Trade/Fair Trade**8%
*“Unethical seller”*
**Advertised Vs Actual Product**4%
*“This was an inaccurately listed item”*
**Functionality-Overall**4%
*“The air purifier would not reset”*
**Hard Feel**4%
*“Was very dusty”*
### **Top return reasons **
**Filtration**25%
**Product Condition**25%
**Defective Material/Parts**23%
**Compatibility-Overall**4%
**Size-Overall**4%
**Noise Level**3%
**Leak-Proof**2%
**Value For Money**2%
**Ease Of Cleaning**2%
**Functionality-Overall**1%
## **Common questions**
- **Is subzero air purification cartridge profitable to sell on Amazon United States?**
- The niche generates $436K/yr across 6 tracked products. 90-day search growth is +7.0%. Flapen's verdict: Skip it (44/100).
- **How competitive is the subzero air purification cartridge niche?**
- 3 brands and 8 sellers compete. The top 5 products take 96% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in subzero air purification cartridge?**
- Top complaints mined from reviews: Filtration, Product Condition, Quality-Overall. The return rate is 2.5%.
- **When does demand for subzero air purification cartridge peak?**
- Demand peaks in Jan; the busiest month runs 1.5× the quietest.
- **What does it cost to enter the subzero air purification cartridge niche?**
- Listings span $35.05–$126.94; the average listing price is $66.70 (sweet spot $15–$100). The average incumbent carries 551 reviews — the moat a new listing must climb.
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