---
title: "Filter Sock — $156K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/filter-sock"
last_updated: "2026-07-21T17:35:54.183Z"
locale: en
meta:
description: "Niche score 62/100 · $156K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 62/100 · $156K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Filter Sock — $156K/yr Amazon US Niche (2026) - Flapen"
---
# **filter sock**
**Worth a look**
Shows low returns (0.5%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 33Growth 43Conversion 85Competition 65Returns 97Price range 76Avg price 89Brand share 75Review moat 55Quality gap 43
**Returns**
**Incredible****0.5%**
return rate — above 6% kills the launch gate
**Avg price**
**Great****$20.55**
avg listing price — sweet spot $15–$100
**Conversion**
**Great****9.4%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Great****$4.79–$47.71**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****60%**
top-5 brand share — brands hold most of the demand
**Competition**
**Good****46%**
top-5 click share — leaders hold, buyers still browse
**Review moat**
**Good****1,311.92**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Okay****+14.7%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$156K**
$156K/yr · 81K searches
According to Flapen's Amazon United States niche tracking, filter sock is a $156K/yr Amazon United States market (81K searches/yr). The top 5 brands hold 60% of demand. Verdict: Worth a look — 62/100.
Data updated Jul 17, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **filter sock market data**
- **Units sold / yr**
- **6K–8K**
- avg 100–250/product
- **Revenue / yr**
- **$123K–$164K**
- units × avg price
- **Launch success**
- **40%**
- 2 of 5 new (360d)
- **Conversion rate**
- **9.4%**
- **Avg BSR**
- **#398**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **41 months**
- **Avg seller age**
- **184 days**
## **Competition & brand share**
The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**23 **▼falling
**Sellers**
**39**
**Top-5 brand share**
**60%**
Top 20: 98%
**Top-5 click share**
**46%**
Top 20: 82%
**Open market**
**33%**
- Aquatic Experts16% - Coopache14% - XUANZIKEMAO12% - ROMIVO10% - AYWFEY8% - beaufan7%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +14.7% search growth over the last 90 days.
2K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/pet-supplies/filter-sock/trend)
## **Top filter sock search terms**
- **filter sock**28K/yr+27.6%6.0% conv. - **filter socks**16K/yr+104.3%12.5% conv. - **filter socks for saltwater aquarium**12K/yr-38.9%5.1% conv. - **aquarium filter sock**7K/yr-16.0%4.4% conv. - **4 inch filter sock**6K/yr-29.2%7.2% conv. - **sock filter**4K/yr+10.9%4.3% conv. - **filter socks 4 inch**4K/yr-18.3%6.6% conv. - **4 filter sock**4K/yr-21.7%9.5% conv. [**All search terms **](https://flapen.com/research/us/pet-supplies/filter-sock/search-terms)
## **Top filter sock 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%4%$6K8%$12K12%$19K16%$25K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 38 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Coopache 30-Pack of Pool Skimmer Socks - Filters Baskets Skimmers Cleans Debris and Leaves for In-Ground and Above Ground Pools**Coopache**$9.78**4.6★11,387 rev](https://www.amazon.com/dp/B073GSWKP2) [2**XUANZIKEMAO 12 Pack 4 Inch Filter Sock 150 Micron Ring Honeycomb Filter Socks Filter Socks for Saltwater Aquarium Freshwater Aquarium Filter Bags Filter Bags for Fish Tank**XUANZIKEMAO**$17.43**4.4★90 rev](https://www.amazon.com/dp/B0DRC2W49G) [3**ROMIVO 50 Pack Pool Filter Socks for Pool Skimmer Pool Skimmer Socks for Inground Pool Or Above Ground Pool Filter Ultra Fine Mesh Screen Liner Skimmer Basket Scum Sock Saver Debris Leaves Catcher**ROMIVO**$11.61**4.6★3,499 rev](https://www.amazon.com/dp/B0BR5C7R4T) [4**Aquatic Experts Felt Filter Socks 4 Inch Ring Style 200 Micron Aquarium Filter Sock for Sumps & Aquariums (4 x 14 2 Pack)**Aquatic Experts**$17.51**4.6★2,466 rev](https://www.amazon.com/dp/B00QCLJOOO) [5**beaufan 20 Pack 4 Inch 150 Micron Honeycomb Filter Socks for Fish Tank Aquarium Filter Sock 3D Honeycomb Design Filter Sock Compatible with Waterbox Marine X 60.2 90.3 and 110.4.**beaufan**$36.77**4.3★53 rev](https://www.amazon.com/dp/B0DDTHY96G)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**45 Pack Pool Filter Socks for Skimmer Baskets Reusable Pool Skimmer Socks for Above Ground or Inground Pools Filter Protecting Fine Mesh Screen Basket Sock for Collecting Leaves Branches Debris**HeatPure**$10.42**19 rev3mo ago](https://www.amazon.com/dp/B0GVY1YGNX) [**Erthskda 12 Pack Filter Socks Reusable 4 Inch 3D Honeycomb Mesh Filter Bags for Aquarium Sump Saltwater and Freshwater Fish Tank Reef Tank White**Erthskda**$19.67**3 rev5mo ago](https://www.amazon.com/dp/B0GLGT711B) [**Oqqlin 6 Pcs 4 Filter Sock for Saltwater Aquarium 4 Inch Ring by 10 Inch Long Filter Socks 200 m Reusable Aquarium Filters Bags for Fish Tank Sump Freshwater Aquariums (White)**Oqqlin**$14.68**2 rev5mo ago](https://www.amazon.com/dp/B0GL8HHLGJ) [**120 Pack Pool Filter Socks for Skimmer Baskets Reusable Pool Skimmer Socks for Above Ground or Inground Pools Filter Protecting Fine Mesh Screen Basket Sock for Collecting Leaves Branches Debris**HeatPure**$24.37**52 rev7mo ago](https://www.amazon.com/dp/B0G5ZKNPL4) [**MCCKLE Filter Sock 4 Inch Ring Filter Socks for Saltwater Aquarium by 9 Inch Long 200 Micron Aquarium Filter Sock for Fish Tank Sump Saltwater Freshwater Aquariums (12 Pack)**MCCKLE**$32.76**32 rev11mo ago](https://www.amazon.com/dp/B0FJRKZ44L)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**45 Pack Pool Filter Socks for Skimmer Baskets Reusable Pool Skimmer Socks for Above Ground or Inground Pools Filter Protecting Fine Mesh Screen Basket Sock for Collecting Leaves Branches Debris**HeatPure**$10.42**4.6★**▲ 216%**](https://www.amazon.com/dp/B0GVY1YGNX) [**120 Pack Pool Filter Socks for Skimmer Baskets Reusable Pool Skimmer Socks for Above Ground or Inground Pools Filter Protecting Fine Mesh Screen Basket Sock for Collecting Leaves Branches Debris**HeatPure**$24.37**4.7★**▲ 192%**](https://www.amazon.com/dp/B0G5ZKNPL4) [**MPINOI 60PCS Pool Skimmer Filter Socks for Above Ground and Inground Pool Skimmer Basket Pool nets for Cleaning Ultra Fine Mesh Screen Socks for Pool Skimmer Basket with a Bag for Storage**MPINOI**$12.77**4.7★**▲ 185%**](https://www.amazon.com/dp/B0C2JBXD6N) [**30 Pack Pool Skimmer Socks Pool Filter Socks for Skimmer Basket for Above Ground and Inground Pool Ultra Fine Mesh Screen Pool Skimmer Scum Socks Saver Pool Cleaning Filter Socks Cleans Debris Leaves**LUYI**$6.83**4.5★**▲ 184%**](https://www.amazon.com/dp/B0D14MPG3M) [**100 Pack Pool Skimmer Socks Pool Filter Socks Works Perfect with Pool Skimmer for Inground and Above Ground Pool Skimmer Basket/ Hot Tub Filter Ultra Fine Mesh Socks Filter Debris and Leaves**WISHDIAM**$28.59**4.7★**▲ 171%**](https://www.amazon.com/dp/B0BNX7DWVK)
**~~View all trending →~~**
## **What buyers say about filter sock**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**19%
*“Great filter”*
**Value For Money**15%
*“Money saver”*
**Quality-Overall**15%
*“Excellent product”*
**Ease Of Cleaning**10%
*“Great for Keeping the Pool Cleaner”*
**Ease Of Use**9%
*“Easy to use”*
**Advertised Vs Actual Product**9%
*“As advertised”*
**Size-Overall**7%
*“Fit well”*
**Durability**3%
*“still usable”*
**Pest/Insect Control**2%
*“Great for small bugs in pool”*
**Material Quality**1%
*“The mesh material feels durable”*
### **What buyers complain about **
**Size-Overall**19%
*“Very small”*
**Filtration**12%
*“These are NOT ultra fine filters”*
**Quality-Overall**8%
*“Inconsistent quality”*
**Durability**6%
*“Rips super easy”*
**Value For Money**6%
*“a bit cheaper”*
**Thickness**4%
*“They are not quite deep enough either”*
**Ease Of Cleaning**3%
*“that then go through my main filter resulting in me having to clean it more frequently”*
**Functionality-Overall**3%
*“do not function as one would expect”*
**Jamming/Clogging**3%
*“bugs that clog”*
**Contamination**2%
*“water chemistry chemical additions”*
### **Top return reasons **
**Size-Overall**60%
**Filtration**9%
**Functionality-Overall**8%
**Advertised Vs Actual Product**7%
**Quality-Overall**3%
**Value For Money**3%
**Material Quality**2%
**Thickness**1%
**Thin**1%
**Defective Material/Parts**1%
## **Common questions**
- **Is filter sock profitable to sell on Amazon United States?**
- The niche generates $156K/yr across 38 tracked products. 2 of 5 products launched in the last 360 days are still selling. 90-day search growth is +14.7%. Flapen's verdict: Worth a look (62/100).
- **How competitive is the filter sock niche?**
- 23 brands and 39 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 60% of demand.
- **What do buyers complain about in filter sock?**
- Top complaints mined from reviews: Size-Overall, Filtration, Quality-Overall. The return rate is 0.5%.
- **When does demand for filter sock peak?**
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- **What does it cost to enter the filter sock niche?**
- Listings span $4.79–$47.71; the average listing price is $20.55 (sweet spot $15–$100). The average incumbent carries 1,312 reviews — the moat a new listing must climb.
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