---
title: "Smartoo Replacement Filters — $63K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/smartoo-replacement-filters"
last_updated: "2026-07-21T17:29:29.906Z"
locale: en
meta:
description: "Niche score 46/100 · $63K/yr market · 12K searches/yr · $21.67 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $63K/yr market · 12K searches/yr · $21.67 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Smartoo Replacement Filters — $63K/yr Amazon US Niche (2026) - Flapen"
---
# **smartoo replacement filters**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 16Growth 19Conversion 100Competition 20Returns 97Price range 95Avg price 92Brand share 0Review moat 69Quality gap 52
**Conversion**
**Incredible****24.2%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.5%**
return rate — above 6% kills the launch gate
**Price range**
**Incredible****$15.60–$29.90**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$21.67**
avg listing price — sweet spot $15–$100
**Review moat**
**Good****741.88**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****75%**
top-5 click share — a locked-up shelf
**Growth**
**Bad****-12.2%**
90-day search growth — must beat 0% to launch
**Market size**
**Bad****$63K**
$63K/yr · 12K searches
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, smartoo replacement filters is a $63K/yr Amazon United States market (12K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Apr. Verdict: Skip it — 46/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **smartoo replacement filters market data**
- **Units sold / yr**
- **3K–3K**
- avg 100–250/product
- **Revenue / yr**
- **$54K–$65K**
- units × avg price
- **Launch success**
- **—**
- 0 of 0 new (360d)
- **Conversion rate**
- **24.2%**
- **Avg BSR**
- **#315**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **6.3%**
- **Avg brand age**
- **21 months**
- **Avg seller age**
- **277 days**
## **Competition & brand share**
The top 5 products capture 75% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**5 **▼falling
**Sellers**
**7**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**75%**
Top 20: 100%
**Open market**
**0%**
- HAVANSIDY39% - smartoo33% - Cunina10% - KTNAid9% - PetNeizance9% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 62 weeks — -12.2% search growth over the last 90 days.
225175Spike '25Prime Day '25Spike '26 seasonMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Apr · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/pet-supplies/smartoo-replacement-filters/trend)
## **Top smartoo replacement filters search terms**
- **smartoo replacement filters**8K/yr-3.1%20.0% conv. - **smartoo pet water fountain replacement filters**3K/yr-30.5%16.7% conv. - **smartoo filters**1K/yr+0.3%4.1% conv. [**All search terms **](https://flapen.com/research/us/pet-supplies/smartoo-replacement-filters/search-terms)
## **Top smartoo replacement filters 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%10%$6K20%$13K30%$19K40%$25K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**16 Sets Replacement Filter & Sponges for Smartoo 152oz/4.5L Pet Cat Water Fountain Fountain Filters Compatible with Wireless Stainless Steel Cat Water Fountain PTM-643**HAVANSIDY**$19.09**4.8★27 rev](https://www.amazon.com/dp/B0DRKM7NPS) [2**16 Sets Pet Dog Replacement Filters Compatible with Smartoo 7l/236oz/1.8G Dog Water Fountain Water Fountain Filters for Stainless Steel Dog Water Fountain**HAVANSIDY**$16.08**4.7★67 rev](https://www.amazon.com/dp/B0DRP9ZP3J) [3**Smartoo 9 Packs Official Replacement Filters and 9 Packs Sponges for 152oz/4.5L Wireless Cat Water Fountain PTM-643**smartoo**$24.88**4.1★2,154 rev](https://www.amazon.com/dp/B0CX8K8TSP) [4**Cunina Cat Water Fountain Filter Fit for Smartoo 152oz/4.5L Wireless Cat Fountain PTM-643 Cat Fountain Filter Replacement Fit for Smartoo Replacement Filters Multilayer Filter 8 Filters + 8 Sponge**Cunina**$15.60**4.7★64 rev](https://www.amazon.com/dp/B0DG5FNL9W) [5**KTNAid 12+12 Filter & Sponges for Smartoo 152oz/4.5L Wireless Cat Water Fountain Quadruple Filtration Cat Fountain Filter Replacement for Smartoo Replacement Filters**KTNAid**$16.61**4.6★112 rev](https://www.amazon.com/dp/B0DGKXK467)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**32 Pack Dog Water Filter Replacement Compatible with Smartoo 7L / 236oz / 1.8Gal Stainless Steel Fountain16 Filters + 16 Sponge for Large Dog Water Fountain**PetNeizance**$25.61**19 rev1y ago](https://www.amazon.com/dp/B0F24LQRYS) [**16 Sets Pet Dog Replacement Filters Compatible with Smartoo 7l/236oz/1.8G Dog Water Fountain Water Fountain Filters for Stainless Steel Dog Water Fountain**HAVANSIDY**$16.08**67 rev1y ago](https://www.amazon.com/dp/B0DRP9ZP3J) [**16 Sets Replacement Filter & Sponges for Smartoo 152oz/4.5L Pet Cat Water Fountain Fountain Filters Compatible with Wireless Stainless Steel Cat Water Fountain PTM-643**HAVANSIDY**$19.09**27 rev1y ago](https://www.amazon.com/dp/B0DRKM7NPS) [**Cunina Cat Water Fountain Filter Fit for Smartoo 152oz/4.5L Wireless Cat Fountain PTM-643 Cat Fountain Filter Replacement Fit for Smartoo Replacement Filters Multilayer Filter 8 Filters + 8 Sponge**Cunina**$15.60**64 rev1y ago](https://www.amazon.com/dp/B0DG5FNL9W) [**KTNAid 12+12 Filter & Sponges for Smartoo 152oz/4.5L Wireless Cat Water Fountain Quadruple Filtration Cat Fountain Filter Replacement for Smartoo Replacement Filters**KTNAid**$16.61**112 rev1y ago](https://www.amazon.com/dp/B0DGKXK467)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Smartoo 12 Packs Official Replacement Filters and 12 Packs Sponges for 152oz/4.5L Wireless Cat Water Fountain PTM-643**smartoo**$29.90**4.1★**▲ 95%**](https://www.amazon.com/dp/B0DM1YGV6N) [**16 Sets Pet Dog Replacement Filters Compatible with Smartoo 7l/236oz/1.8G Dog Water Fountain Water Fountain Filters for Stainless Steel Dog Water Fountain**HAVANSIDY**$16.08**4.7★**▲ 44%**](https://www.amazon.com/dp/B0DRP9ZP3J) [**16 Sets Replacement Filter & Sponges for Smartoo 152oz/4.5L Pet Cat Water Fountain Fountain Filters Compatible with Wireless Stainless Steel Cat Water Fountain PTM-643**HAVANSIDY**$19.09**4.8★**▲ 26%**](https://www.amazon.com/dp/B0DRKM7NPS) [**32 Pack Dog Water Filter Replacement Compatible with Smartoo 7L / 236oz / 1.8Gal Stainless Steel Fountain16 Filters + 16 Sponge for Large Dog Water Fountain**PetNeizance**$25.61**4.2★**— 3%**](https://www.amazon.com/dp/B0F24LQRYS) [**Smartoo Official 9 Packs Dog Water Filter Replacement and 9 Sponges with 1 Pump Holder for 7L/236oz/1.8Gal Stainless Steel Dog Water Fountain**smartoo**$25.56**4.3★**— 2%**](https://www.amazon.com/dp/B0CNPFYJP8)
**~~View all trending →~~**
## **What buyers say about smartoo replacement filters**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**20%
*“perfect fit”*
**Value For Money**16%
*“Works great, value for the money”*
**Quality-Overall**14%
*“Good Product”*
**Filtration**13%
*“Great filters”*
**Water Flow**10%
*“Essential item for water fountain”*
**Ease Of Cleaning**5%
*“clean for much longer”*
**Pet Friendly**5%
*“My dogs love having a water bubbler”*
**Ease Of Use**4%
*“Easy”*
**Efficiency**4%
*“Works great”*
**Refills-Overall**2%
*“When I clean it to refill she is looking for it”*
### **What buyers complain about **
**Value For Money**20%
*“they charge double the price as the same product that is marked as Amazon's Choice which comes in a pack of 18”*
**Quality-Overall**20%
*“CHEAP MADE POOR QUALITY”*
**Filtration**20%
*“The filters seems very generic”*
**Unsustainable Design**20%
*“Poorly made”*
**Size-Overall**10%
*“I honestly wish it came in a bigger amount so I didnt have to order them so often”*
### **Top return reasons **
**Size-Overall**35%
**Filtration**33%
**Shape/Style**9%
**Compatibility-Overall**9%
**Defective Material/Parts**4%
**Value For Money**4%
**Quality-Overall**4%
**Advertised Vs Actual Product**2%
## **Common questions**
- **Is smartoo replacement filters profitable to sell on Amazon United States?**
- The niche generates $63K/yr across 8 tracked products. 90-day search growth is -12.2%. Flapen's verdict: Skip it (46/100).
- **How competitive is the smartoo replacement filters niche?**
- 5 brands and 7 sellers compete. The top 5 products take 75% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in smartoo replacement filters?**
- Top complaints mined from reviews: Value For Money, Quality-Overall, Filtration. The return rate is 0.5%.
- **When does demand for smartoo replacement filters peak?**
- Demand peaks in Apr; the busiest month runs 1.6× the quietest.
- **What does it cost to enter the smartoo replacement filters niche?**
- Listings span $15.60–$29.90; the average listing price is $21.67 (sweet spot $15–$100). The average incumbent carries 742 reviews — the moat a new listing must climb.
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