---
title: "Leveluk Sd501 Filter Replacement — $37K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/leveluk-sd501-filter-replacement"
last_updated: "2026-08-09T04:26:57.788Z"
locale: en
meta:
description: "Niche score 40/100 · $37K/yr market · 4K searches/yr · $82.41 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 40/100 · $37K/yr market · 4K searches/yr · $82.41 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Leveluk Sd501 Filter Replacement — $37K/yr Amazon US Niche (2026) - Flapen"
---
# **leveluk sd501 filter replacement**
**Skip it**
Soft demand (-47.6% this quarter) — this niche doesn't clear our bar today.
Market size 9Growth 1Conversion 96Competition 22Returns 22Price range 61Avg price 81Brand share 29Review moat 90Quality gap 84
**Conversion**
**Incredible****12.9%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Great****198.78**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Avg price**
**Great****$82.41**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$38.28–$140.29**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Okay****88%**
top-5 brand share — brands hold most of the demand
**Competition**
**Bad****73%**
top-5 click share — a locked-up shelf
**Returns**
**Bad****5.9%**
return rate — above 5% kills the launch gate
**Market size**
**Bad****$37K**
$37K/yr · 4K searches
**Growth**
**Bad****-47.6%**
90-day search growth — must beat 0% to launch
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500") [** High Returns**](https://flapen.com/research/niches?market=us&signal=high_returns "Return rate > 5%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, leveluk sd501 filter replacement is a $37K/yr Amazon United States market (4K searches/yr). The top 5 brands hold 88% of demand. Demand peaks in Aug–Sep. Verdict: Skip it — 40/100.
Data updated Jul 28, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **leveluk sd501 filter replacement market data**
- **Units sold / yr**
- **250–500**
- avg 0–100/product
- **Revenue / yr**
- **$21K–$41K**
- units × avg price
- **Conversion rate**
- **12.9%**
- **Avg BSR**
- **#732**
- **Page quality**
- **0%**
- **Prime**
- **89%**
- **Sponsored**
- **78%**
- **Out of stock**
- **11.8%**
- **Avg brand age**
- **45 months**
- **Avg seller age**
- **167 days**
## **Competition & brand share**
The top 5 products capture 73% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**8 **—flat
**Sellers**
**16**
**Top-5 brand share**
**88%**
Top 20: 100%
**Top-5 click share**
**73%**
Top 20: 100%
**Open market**
**12%**
- Qualirey29% - PERCOLA23% - Enagic14% - Zomixzo8% - Varycony7% - IonHiTech7% - Open — no brand owns it (2 brands, 12%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -47.6% search growth over the last 90 days.
225175Black Friday '24Spike '25Prime Day '25Black Friday '25Holiday '25Spike '26Prime Day '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Sep · busiest ÷ quietest = 3.2×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/leveluk-sd501-filter-replacement/trend)
## **Top leveluk sd501 filter replacement 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%$4K20%$7K30%$11K40%$15K1101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 9 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**PERCOLA FC1 F8 HG-N Water Filter 1-Pack**PERCOLA**$75.71**4.0★75 rev](https://www.amazon.com/dp/B0FFMY5THK) [2**Qualirey 1 Pack Premium Filter Replacement Compatible with HG-N Type Water Ionizer NSF 372 Certified Compatible with Enagic Kangen LeveLuk SD501 JrIV KANGEN 8(Not Original Type Before 2010)**Qualirey**$38.28**4.4★141 rev](https://www.amazon.com/dp/B0F2FBQVBG) [3**ORIGINAL AUTHENTIC ENAGIC HG-N WATER FILTER FOR SD501 SERIES (1 Pack)**Enagic**$140.29**4.4★685 rev](https://www.amazon.com/dp/B00OXC7G8K) [4**Qualirey 2 Pack Premium Filter Replacement Compatible with HG-N Type Water Ionizer NSF 372 Certified Compatible with Enagic Kangen LeveLuk SD501 JrIV KANGEN 8(Not Original Type Before 2010)**Qualirey**$73.05**4.4★141 rev](https://www.amazon.com/dp/B0FDK7Z8LC) [5**HG-N FC1 F8 Water Filter Replacement Compatible with Enagic Leveluk F8 and HG-N Filters for K8 and SD501 (2011+) JRIV Machine Machines 2 Pack**Zomixzo**$101.06**3.8★9 rev](https://www.amazon.com/dp/B0GX1TBLNX)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**HG-N FC1 F8 Water Filter Replacement Compatible with Enagic Leveluk F8 and HG-N Filters for K8 and SD501 (2011+) JRIV Machine Machines 2 Pack**Zomixzo**$101.06**9 rev3mo ago](https://www.amazon.com/dp/B0GX1TBLNX) [**FC1 F8 HG-N Water Filter Replacement Compatible with Enagic Leveluk F8 and HG-N Filters for K8 and SD501 (2011+) JRIV Machine Machines 2 Pack**Varycony**$108.32**18 rev6mo ago](https://www.amazon.com/dp/B0GJSSGDQV) [**FC1 HG-N F8 Water Filter Replacement Cartridge Compatible with Enagic Leveluk K8 SD501 (2011+) JRIV 8-Plate Ionizer Machines Alkaline Water System Pack of 2**Elovener**$106.08**5 rev6mo ago](https://www.amazon.com/dp/B0GJSLYWXN) [**PERCOLA FC1 F8 HG-N Water Filter 1-Pack**PERCOLA**$75.71**75 rev1y ago](https://www.amazon.com/dp/B0FFMY5THK) [**Qualirey 2 Pack Premium Filter Replacement Compatible with HG-N Type Water Ionizer NSF 372 Certified Compatible with Enagic Kangen LeveLuk SD501 JrIV KANGEN 8(Not Original Type Before 2010)**Qualirey**$73.05**141 rev1y ago](https://www.amazon.com/dp/B0FDK7Z8LC)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**HG-N FC1 F8 Water Filter Replacement Compatible with Enagic Leveluk F8 and HG-N Filters for K8 and SD501 (2011+) JRIV Machine Machines 2 Pack**Zomixzo**$101.06**3.8★**▲ 438%**](https://www.amazon.com/dp/B0GX1TBLNX) [**FC1 F8 HG-N Water Filter Replacement Compatible with Enagic Leveluk F8 and HG-N Filters for K8 and SD501 (2011+) JRIV Machine Machines 2 Pack**Varycony**$108.32**4.4★**▲ 328%**](https://www.amazon.com/dp/B0GJSSGDQV) [**FC1 HG-N F8 Water Filter Replacement Cartridge Compatible with Enagic Leveluk K8 SD501 (2011+) JRIV 8-Plate Ionizer Machines Alkaline Water System Pack of 2**Elovener**$106.08**3.4★**▲ 215%**](https://www.amazon.com/dp/B0GJSLYWXN) [**Qualirey 2 Pack Premium Filter Replacement Compatible with HG-N Type Water Ionizer NSF 372 Certified Compatible with Enagic Kangen LeveLuk SD501 JrIV KANGEN 8(Not Original Type Before 2010)**Qualirey**$73.05**4.4★**▲ 130%**](https://www.amazon.com/dp/B0FDK7Z8LC) [**ORIGINAL AUTHENTIC ENAGIC HG-N WATER FILTER FOR SD501 SERIES (1 Pack)**Enagic**$140.29**4.4★**▲ 18%**](https://www.amazon.com/dp/B00OXC7G8K)
**~~View all trending →~~**
## **What buyers say about leveluk sd501 filter replacement**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**22%
*“This is the real deal filter nice”*
**Size-Overall**13%
*“Perfect fit”*
**Efficiency**10%
*“Works well”*
**Assembly/Installation**8%
*“which already puts them ahead of a few others Ive tried in the past that made me question my life choices halfway through installation”*
**Value For Money**7%
*“Good price”*
**Quality-Overall**7%
*“Performance has been excellent”*
**Advertised Vs Actual Product**5%
*“As described”*
**Ease Of Use**4%
*“It clicked right into place without needing tools or instructions”*
**Leak-Proof**4%
*“It fits perfectly no leakage just as easy to install as the magic brand I would give it a five for everything including value for the money”*
**Durability**3%
*“They seem durable and well made”*
### **What buyers complain about **
**Leak-Proof**41%
*“it is leaking”*
**Filtration**27%
*“This is not a good filter that I received”*
**Size-Overall**9%
*“doesn't fit”*
**Color**4%
*“Water coming out is black”*
**Quality-Overall**3%
*“Cheap, low quality filter”*
**Assembly/Installation**3%
*“Filter was difficult to install”*
**Compatibility-Overall**3%
*“Does not fit”*
**Value For Money**1%
*“Totally wasted my money”*
**Defective Material/Parts**1%
*“Parts vary in size”*
**Durability**1%
*“After only one week of use, I noticed that the bottom of my kettle became cloudy, and even my water pitcher became dull and cloudy as well”*
### **Top return reasons **
**Size-Overall**26%
**Filtration**21%
**Compatibility-Overall**20%
**Leak-Proof**15%
**Connectivity-Overall**4%
**Defective Material/Parts**3%
**Functionality-Overall**2%
**Advertised Vs Actual Product**2%
**Value For Money**1%
**Quality-Overall**1%
## **Common questions**
- **Is leveluk sd501 filter replacement profitable to sell on Amazon United States?**
- The niche generates $37K/yr across 9 tracked products. 3 of 3 products launched in the last 360 days are still selling. 90-day search growth is -47.6%. Flapen's verdict: Skip it (40/100).
- **How competitive is the leveluk sd501 filter replacement niche?**
- 8 brands and 16 sellers compete. The top 5 products take 73% of clicks and top 5 brands hold 88% of demand.
- **What do buyers complain about in leveluk sd501 filter replacement?**
- Top complaints mined from reviews: Leak-Proof, Filtration, Size-Overall. The return rate is 5.9% — above our launch gate.
- **When does demand for leveluk sd501 filter replacement peak?**
- Demand peaks in Aug–Sep; the busiest month runs 3.2× the quietest.
- **What does it cost to enter the leveluk sd501 filter replacement niche?**
- Listings span $38.28–$140.29; the average listing price is $82.41 (sweet spot $15–$100). The average incumbent carries 199 reviews — the moat a new listing must climb.
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