---
title: "Viking Spa Filter — $44K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/viking-spa-filter"
last_updated: "2026-08-07T16:21:05.289Z"
locale: en
meta:
description: "Niche score 57/100 · $44K/yr market · 10K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 57/100 · $44K/yr market · 10K searches/yr. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Viking Spa Filter — $44K/yr Amazon US Niche (2026) - Flapen"
---
# **viking spa filter**
**Worth a look**
Shows searches that convert (13.2% search→purchase), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 11Growth 57Conversion 96Competition 43Returns 74Price range 95Avg price 95Brand share 73Review moat 83Quality gap 20
**Conversion**
**Incredible****13.2%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$32.65**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$20.11–$53.37**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****340.75**
avg incumbent reviews — the moat a new listing must climb
**Returns**
**Good****2.1%**
return rate — above 5% kills the launch gate
**Brand share**
**Good****61%**
top-5 brand share — brands hold most of the demand
**Growth**
**Good****+30.8%**
90-day search growth — must beat 0% to launch
**Competition**
**Okay****59%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$44K**
$44K/yr · 10K searches
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, viking spa filter is a $44K/yr Amazon United States market (10K searches/yr). The top 5 brands hold 61% of demand. Demand peaks in Apr–May. Verdict: Worth a look — 57/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **viking spa filter market data**
- **Units sold / yr**
- **2K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$49K–$65K**
- units × avg price
- **Conversion rate**
- **13.2%**
- **Avg BSR**
- **#594**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **40 months**
- **Avg seller age**
- **216 days**
## **Competition & brand share**
The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**17 **▼falling
**Sellers**
**20**
**Top-5 brand share**
**61%**
Top 20: 100%
**Top-5 click share**
**59%**
Top 20: 100%
**Open market**
**30%**
- TOREAD14% - POOLPURE14% - Beckacher12% - KGC12% - Cryspool10% - LVJUSEN9%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +30.8% search growth over the last 90 days.
400300Spike '24Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Apr, May · busiest ÷ quietest = 2.1×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/viking-spa-filter/trend)
## **Top viking spa filter search terms**
- **viking spa filter**4K/yr+49.9%9.3% conv. - **pww50p3**3K/yr+43.4%12.8% conv. - **6ch-940 spa filter**3K/yr+3.9%18.2% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/viking-spa-filter/search-terms)
## **Top viking spa 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.
0%4%$2K8%$4K12%$5K16%$7K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 20 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**PWW50P3 SPA Filter Replacement for Unicel 6CH-940 FC-0359 817-0050 25252 03FIL1400 1 1/2 SAE Thread Screw in Filter 2 Pack**TOREAD**$38.13**4.7★1,452 rev](https://www.amazon.com/dp/B08212MS8X) [2**6CH-940 Spa Filter Cartridge Replacement for Unicel Pleatco PWW50P3 Filbur FC-0359 Aber 03FIL1400 Waterway 817-0050 Front Access Skimmer Viking Pool Hot Tub Filter Screw SAE Thread Filter 2 Pack**Beckacher**$31.76**4.4★242 rev](https://www.amazon.com/dp/B0CSK3QC14) [3**POOLPURE 6CH-940 Spa Filter Replaces PWW50P3(1 1/2 Coarse Thread) 817-0050 Filbur FC-0359 25252 03FIL1400 Waterway Front Access Skimmer Screw in SAE Thread Filter 2 Pack**POOLPURE**$46.23**4.7★1,579 rev](https://www.amazon.com/dp/B08119FD1P) [4**KGC 6CH-940 Spa Filter 2 Pack - Compatible with Pleatco PWW50P3 (1 1/2 SAE Coarse Thread) Unicel 6CH-940 Filbur FC-0359 Waterway 817-0050 03FIL1400 25252-for Viking Spa Front Access Skimmer.**KGC**$26.99**4.7★51 rev](https://www.amazon.com/dp/B0FMXYJRRT) [5**Cryspool 06008 Filter Compatible with 6CH-940 PWW50P3 (NOT PWW50P4) FC-0359 Viking Spa Hot Tub Filter 45 Sq. Ft Spa Filter Cartridge 2 Pack**Cryspool**$39.04**4.6★658 rev](https://www.amazon.com/dp/B098SQ71CV)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**6CH-940 Spa Filter Cartridge Replacement for Unicel Pleatco PWW50P3 Filbur FC-0359 Aber 03FIL1400 Waterway 817-0050 Front Access Skimmer Viking Pool Hot Tub Filter Screw SAE Thread Filter 2-Pack**TALANDO**$26.42**9 rev4mo ago](https://www.amazon.com/dp/B0GQSHGS17) [**ZUJAR 06008 Filter Compatible with 6CH-940 PWW50P3 (NOT PWW50P4) FC-0359 Viking Spa Hot Tub Filter 45 Sq. Ft Spa Filter Cartridge 2 Pack**ZUJAR**$26.00**12 rev4mo ago](https://www.amazon.com/dp/B0GQSKPHFS) [**DecoHongDi 6CH-940 Spa Filter Replaces PWW50P3(1 1/2 Coarse Thread)**DecoHongDi**$23.83**16 rev5mo ago](https://www.amazon.com/dp/B0GKR7R29R) [**6CH-940 Spa Filter Compatible with PWW50P3(1 1/2 Coarse Thread) 817-0050 Filbur FC-0359 25252 03FIL1400 Waterway Front Access Skimmer Pool Replacement Cartridge Filter 2 Pack 5.87x9.67**LBLVBNEWD**$25.98**11 rev6mo ago](https://www.amazon.com/dp/B0GCZBGSY3) [**FOIRCEADAL Hot Tub Filter Compatible with Unicel 6CH-940 Filbur FC-0359 PWW50P3 817-0050 25252 03FIL1400 (1 1/2 SAE Thread) Pool Spa Filters Cartridge Replacements 2 Pack**FOIRCEADAL**$29.35**58 rev7mo ago](https://www.amazon.com/dp/B0G5WMK4LV)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**6CH-940 Spa Filter Cartridge Replacement for Unicel Pleatco PWW50P3 Filbur FC-0359 Aber 03FIL1400 Waterway 817-0050 Front Access Skimmer Viking Pool Hot Tub Filter Screw SAE Thread Filter 2-Pack**TALANDO**$26.42**5.0★**▲ 230%**](https://www.amazon.com/dp/B0GQSHGS17) [**ZUJAR 06008 Filter Compatible with 6CH-940 PWW50P3 (NOT PWW50P4) FC-0359 Viking Spa Hot Tub Filter 45 Sq. Ft Spa Filter Cartridge 2 Pack**ZUJAR**$26.00**5.0★**▲ 229%**](https://www.amazon.com/dp/B0GQSKPHFS) [**DecoHongDi 6CH-940 Spa Filter Replaces PWW50P3(1 1/2 Coarse Thread)**DecoHongDi**$23.83**4.8★**▲ 220%**](https://www.amazon.com/dp/B0GKR7R29R) [**6CH-940 Spa Filter Compatible with PWW50P3(1 1/2 Coarse Thread) 817-0050 Filbur FC-0359 25252 03FIL1400 Waterway Front Access Skimmer Pool Replacement Cartridge Filter 2 Pack 5.87x9.67**LBLVBNEWD**$25.98**4.6★**▲ 186%**](https://www.amazon.com/dp/B0GCZBGSY3) [**KGC 6CH-940 Spa Filter 2 Pack - Compatible with Pleatco PWW50P3 (1 1/2 SAE Coarse Thread) Unicel 6CH-940 Filbur FC-0359 Waterway 817-0050 03FIL1400 25252-for Viking Spa Front Access Skimmer.**KGC**$26.99**4.7★**▲ 110%**](https://www.amazon.com/dp/B0FMXYJRRT)
**~~View all trending →~~**
## **What buyers say about viking spa filter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**23%
*“Exact fit”*
**Filtration**23%
*“Filters well”*
**Value For Money**17%
*“Saves Money”*
**Quality-Overall**10%
*“They feel comparable in quality to other filters Ive used”*
**Advertised Vs Actual Product**8%
*“were exactly what I needed”*
**Assembly/Installation**5%
*“Easy to install”*
**Ease Of Cleaning**4%
*“That makes routine cleaning quick”*
**Durability**3%
*“The material seems durable”*
**Material Quality**1%
*“The material feel durable”*
**Spray/Flow**1%
*“do a great job trapping debris while still allowing strong water flow”*
### **What buyers complain about **
**Filtration**25%
*“Not the best filters I've used”*
**Size-Overall**25%
*“but it's too big around”*
**Quality-Overall**14%
*“Low quality”*
**Material Quality**5%
*“Very cheap plastic crap”*
**Smell**5%
*“It has a very strong smell compared to the name brand ones”*
**Heating**5%
*“damaged the heating element in our unit”*
**Spray/Flow**2%
*“the flow is too restrictive”*
**Thickness**2%
*“Pleats dont go nearly as deep as the Filbur filter”*
**Ease Of Use**2%
*“I am unable to used them”*
**Jamming/Clogging**2%
*“Clogs way too fast”*
### **Top return reasons **
**Size-Overall**75%
**Filtration**14%
**Advertised Vs Actual Product**8%
**Functionality-Overall**1%
**Defective Material/Parts**1%
**Value For Money**1%
**Product Condition**0%
**Assembly/Installation**0%
**Connectivity-Overall**0%
**Add-Ons/Attachments**0%
## **Common questions**
- **Is viking spa filter profitable to sell on Amazon United States?**
- The niche generates $44K/yr across 20 tracked products. 2 of 6 products launched in the last 360 days are still selling. 90-day search growth is +30.8%. Flapen's verdict: Worth a look (57/100).
- **How competitive is the viking spa filter niche?**
- 17 brands and 20 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 61% of demand.
- **What do buyers complain about in viking spa filter?**
- Top complaints mined from reviews: Filtration, Size-Overall, Quality-Overall. The return rate is 2.1%.
- **When does demand for viking spa filter peak?**
- Demand peaks in Apr–May; the busiest month runs 2.1× the quietest.
- **What does it cost to enter the viking spa filter niche?**
- Listings span $20.11–$53.37; the average listing price is $32.65 (sweet spot $15–$100). The average incumbent carries 341 reviews — the moat a new listing must climb.
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