---
title: "Master Spa Filters — $61K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/master-spa-filters"
last_updated: "2026-08-05T21:53:31.428Z"
locale: en
meta:
description: "Niche score 53/100 · $61K/yr market · 37K searches/yr · $41.58 avg price. A small market ($61K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 53/100 · $61K/yr market · 37K searches/yr · $41.58 avg price. A small market ($61K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Master Spa Filters — $61K/yr Amazon US Niche (2026) - Flapen"
---
# **master spa filters**
**Worth a look**
Shows a sweet-spot price point ($41.58 avg), but a small market ($61K/yr) keeps it on the watch list.
Market size 15Growth 41Conversion 49Competition 68Returns 58Price range 95Avg price 95Brand share 61Review moat 92Quality gap 30
**Avg price**
**Incredible****$41.58**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****$20.51–$96.04**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****152.77**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****44%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Good****68%**
top-5 brand share — brands hold most of the demand
**Returns**
**Good****2.7%**
return rate — above 5% kills the launch gate
**Conversion**
**Okay****3.9%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Okay****+13.1%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Bad****$61K**
$61K/yr · 37K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, master spa filters is a $61K/yr Amazon United States market (37K searches/yr). The top 5 brands hold 68% of demand. Verdict: Worth a look — 53/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **master spa filters market data**
- **Units sold / yr**
- **1K–1K**
- avg 0–100/product
- **Revenue / yr**
- **$42K–$52K**
- units × avg price
- **Conversion rate**
- **3.9%**
- **Avg BSR**
- **#1,356**
- **Page quality**
- **0%**
- **Prime**
- **87%**
- **Sponsored**
- **93%**
- **Out of stock**
- **0.6%**
- **Avg brand age**
- **40 months**
- **Avg seller age**
- **219 days**
## **Competition & brand share**
The top 5 products take 44% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**20 **▲rising
**Sellers**
**27**
**Top-5 brand share**
**68%**
Top 20: 100%
**Top-5 click share**
**44%**
Top 20: 92%
**Open market**
**25%**
- LVJUSEN21% - POOLPURE17% - Cryspool12% - Future Way9% - Chryseos9% - SUNRRA7%
## **Demand & seasonality**
Weekly Amazon search volume, last 85 weeks — +13.1% search growth over the last 90 days.
1K600Spike '25Spike '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
No pronounced peak months · busiest ÷ quietest = 1.5×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/master-spa-filters/trend)
## **Top master spa filters search terms**
- **master spa filters**19K/yr+15.9%1.5% conv. - **master spa twilight series filters**9K/yr+11.8%2.9% conv. - **master spa filter**4K/yr+35.0%1.7% conv. - **pma-r3 x268548 master spa filter**4K/yr-6.3%9.1% conv. - **master spa filters eco pur**1K/yr-19.1%0.0% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/master-spa-filters/search-terms)
## **Top master spa 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%3%$2K6%$4K9%$5K12%$7K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Cryspool 06012 Filter Compatible with 6CH-402 PMA40L-F2M X268543 Master Spas Twilight X268365 X26851 X268514 40 Sq. Ft Spa Filter Cartridge 2 Pack**Cryspool**$52.67**4.6★121 rev](https://www.amazon.com/dp/B0B8RGJKVP) [2**LVJUSEN Spa Filter Replaces PMA-R3 X268548 Master Spa Filter/Nordic Retreat Spa Filter/Pleatco PWW35L/Unicel 4CH-935 Fits Most Clarity Healthy Living Spas-2 Pack**LVJUSEN**$43.05**4.3★103 rev](https://www.amazon.com/dp/B0F1872GSP) [3**Future Way PWW35L Hot Tub Filter Replacement for X268548-PMA-R3 Unicel 4CH-935817-4035 Filbur FC-0710Waterway Teleweir 35 SF Replace Pleatco PWW35L Spa Filter SD-01235 PDC580-AFS 35 Sq. Ft**Future Way**$27.28**4.4★130 rev](https://www.amazon.com/dp/B0D4V9531R) [4**LVJUSEN PMA40L Spa Filter Replaces Master Spas Filter X268543 PMA40L-F2M Fits Most Twilight Series Spa Compatible with 6CH-402/ FC-0317/ X268365-2 Pack**LVJUSEN**$46.80**4.7★25 rev](https://www.amazon.com/dp/B0DT3JLSTK) [5**SUNRRA PWW35L Hot Tub Filter Replacement Compatible with Master Spa X268548-PMA-R3PWW35L Unicel 4CH-935 Waterway 817-4035 Teleweir 35 SF Replace Pleatco PWW35L SPA Filter Cartridge 35 Sq. Ft**SUNRRA**$26.14**4.8★12 rev](https://www.amazon.com/dp/B0FT3YKSXX)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Crocker Sales X268549 Outer White Front Access Master Spas Filter**Crocker Sales**$73.67**2 rev2mo ago](https://www.amazon.com/dp/B0GJTWC8L4) [**SpiroPure Replacement for Master Spa X268526 Pleatco PMA15P3 Filbur FC-0002 Master Spa Legacy LW 524 Hot Tub Spa Pool Cartridge**SpiroPure**$41.85**0 rev8mo ago](https://www.amazon.com/dp/B0FZTSF4H5) [**SUNRRA PWW35L Hot Tub Filter Replacement Compatible with Master Spa X268548-PMA-R3PWW35L Unicel 4CH-935 Waterway 817-4035 Teleweir 35 SF Replace Pleatco PWW35L SPA Filter Cartridge 35 Sq. Ft**SUNRRA**$26.14**12 rev9mo ago](https://www.amazon.com/dp/B0FT3YKSXX) [**LVJUSEN Spa Filter Replaces PMA-R3 X268548 Master Spa Filter/Nordic Retreat Spa Filter/Pleatco PWW35L/Unicel 4CH-935 Fits Most Clarity Healthy Living Spas-2 Pack**LVJUSEN**$43.05**103 rev1y ago](https://www.amazon.com/dp/B0F1872GSP) [**LVJUSEN PMA40L Spa Filter Replaces Master Spas Filter X268543 PMA40L-F2M Fits Most Twilight Series Spa Compatible with 6CH-402/ FC-0317/ X268365-2 Pack**LVJUSEN**$46.80**25 rev1y ago](https://www.amazon.com/dp/B0DT3JLSTK)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Chryseos Spa Filter Compatible with 6CH-940 FC-0359 PWW50P3 (1 1/2 Coarse Thread) 817-0050 25252 03FIL1400 SAE Thread 45 sq.ft. 2 Pack**Chryseos**$31.19**4.7★**▲ 92%**](https://www.amazon.com/dp/B0CFTXWLBS) [**POOLPURE 6CH-352 Hot Tub Filter Replaces Artesian Spas 06-0014-12 Master Spas PMA-R1 X268546 PAS40-F2M Unicel 6CH-352 Filbur FC-0312 AK-90131 40 Sq. Ft Spa Filter Cartridge 2 Pack**POOLPURE**$55.90**4.6★**▲ 78%**](https://www.amazon.com/dp/B0CSK1PP2L) [**In The Swim Premium Spa Filter Cartridge Replacement for Master Spas Eco-Pur**In The Swim**$32.79**5.0★**▲ 55%**](https://www.amazon.com/dp/B0D2P4RHPR) [**Mamokin Spa Filter 6CH-402 Replaces PMA40L-F2M Master Spas Twilight X268365 X268543 X268511 X268514 Unicel 6CH-402 Filbur FC-0317 2 Male Thread/MPT Hot Tub Filter 2PACK**Mamokin**$50.10**4.6★**▲ 50%**](https://www.amazon.com/dp/B0CGNG2J4S) [**LVJUSEN PMA40L Spa Filter Replaces Master Spas Filter X268543 PMA40L-F2M Fits Most Twilight Series Spa Compatible with 6CH-402/ FC-0317/ X268365-1 Pack**LVJUSEN**$26.12**4.7★**▲ 44%**](https://www.amazon.com/dp/B0DT3Y984C)
**~~View all trending →~~**
## **What buyers say about master spa filters**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**26%
*“Very affordable”*
**Filtration**25%
*“Great filters”*
**Size-Overall**18%
*“Fits great”*
**Advertised Vs Actual Product**10%
*“As advertised”*
**Quality-Overall**8%
*“Excellent product”*
**Durability**5%
*“These also last a long time if you keep them cleaned”*
**Assembly/Installation**1%
*“Easy to install”*
**Ease Of Cleaning**1%
*“Makes it easy to change out other filters while washing the others”*
**Correct Contents**1%
*“Getting the order right”*
**Soft Feel**1%
*“skin feels soft when we get out of our hot tub”*
### **What buyers complain about **
**Size-Overall**39%
*“Too big”*
**Filtration**10%
*“the filters really suck in the debris”*
**Material Quality**7%
*“Very cheap plastic crap”*
**Advertised Vs Actual Product**7%
*“Not a replacement for advertised filter”*
**Spray/Flow**4%
*“the flow is too restrictive”*
**Value For Money**4%
*“More expensive ones I”*
**Durability**4%
*“I dont think they last as long as name brand for our jacuzzi”*
**Heating**4%
*“Caused my spa to overheat”*
**Ease Of Cleaning**2%
*“After about 4 months it wasnt worth cleaning it”*
### **Top return reasons **
**Size-Overall**69%
**Filtration**14%
**Advertised Vs Actual Product**11%
**Functionality-Overall**1%
**Value For Money**1%
**Product Condition**1%
**Defective Material/Parts**1%
**Eco Friendliness**0%
**Connectivity-Overall**0%
**Mounting**0%
## **Common questions**
- **Is master spa filters profitable to sell on Amazon United States?**
- The niche generates $61K/yr across 30 tracked products. 0 of 4 products launched in the last 360 days are still selling. 90-day search growth is +13.1%. Flapen's verdict: Worth a look (53/100).
- **How competitive is the master spa filters niche?**
- 20 brands and 27 sellers compete. The top 5 products take 44% of clicks and top 5 brands hold 68% of demand.
- **What do buyers complain about in master spa filters?**
- Top complaints mined from reviews: Size-Overall, Filtration, Material Quality. The return rate is 2.7%.
- **When does demand for master spa filters peak?**
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- **What does it cost to enter the master spa filters niche?**
- Listings span $20.51–$96.04; the average listing price is $41.58 (sweet spot $15–$100). The average incumbent carries 153 reviews — the moat a new listing must climb.
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