Is enagic leveluk k8 water filter profitable to sell on Amazon United States?

The niche generates $79K/yr across 12 tracked products. 4 of 6 products launched in the last 360 days are still selling. 90-day search growth is +26.7%. Flapen's verdict: Skip it (40/100).

How competitive is the enagic leveluk k8 water filter niche?

10 brands and 28 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 83% of demand.

What do buyers complain about in enagic leveluk k8 water filter?

Top complaints mined from reviews: Filtration, Compatibility-Overall, Value For Money. The return rate is 4.7%.

When does demand for enagic leveluk k8 water filter peak?

Demand peaks in Aug; the busiest month runs 2.1× the quietest.

What does it cost to enter the enagic leveluk k8 water filter niche?

Listings span $30.67–$2481.63; the average listing price is $295.17 (sweet spot $15–$100). The average incumbent carries 74 reviews — the moat a new listing must climb.

enagic leveluk k8 water filter

Skip it

Prices mostly outside the sweet spot ($30.67–$2481.63) — this niche doesn't clear our bar today.

Review moat

Incredible74.25

avg incumbent reviews — the moat a new listing must climb

Quality gap

Great4.2★

avg incumbent rating — lower means beatable quality

Growth

Good+26.7%

90-day search growth — must beat 0% to launch

Conversion

Okay3.9%

search→purchase rate — share of searches ending in a sale

Brand share

Okay83%

top-5 brand share — brands hold most of the demand

Avg price

Okay$295.17

avg listing price — sweet spot $15–$100

Returns

Okay4.7%

return rate — above 5% kills the launch gate

Market size

Bad$79K

$79K/yr · 7K searches

Competition

Bad77%

top-5 click share — a locked-up shelf

Price range

Bad$30.67–$2481.63

cheapest to priciest tracked listing — scored on the share inside $15–$100

Signals Low Review Barrier High Price Out of Stock

According to Flapen's Amazon United States niche tracking, enagic leveluk k8 water filter is a $79K/yr Amazon United States market (7K searches/yr). The top 5 brands hold 83% of demand. Demand peaks in Aug. Verdict: Skip it — 40/100.

Data updated Jul 28, 2026 · scored weekly · How we score niches

enagic leveluk k8 water filter market data

Units sold / yr: 250–500; avg 0–100/product
Revenue / yr: $74K–$148K; units × avg price
Conversion rate: 3.9%
Avg BSR: #438
Page quality: 0%
Prime: 75%
Sponsored: 75%
Out of stock: 23.7%
Avg brand age: 51 months
Avg seller age: 158 days

Competition & brand share

The top 5 products capture 77% of clicks — a locked-up shelf that new listings rarely crack.

Brands

10 flat

Sellers

Top-5 brand share

83%

Top 20: 100%

Top-5 click share

77%

Top 20: 100%

Open market

13%

Loiesitarge49%
Elovener11%
Kangen10%
COOLVIVA8%
FAIR KANPAI5%
Enagic4%
Open — no brand owns it (4 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 95 weeks — +26.7% search growth over the last 90 days.

Peak months: Aug · busiest ÷ quietest = 2.1×

Open Trend

Top enagic leveluk k8 water 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 12 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Loiesitarge High Grade Water Filter Replacement Removal of Chlorine for the Leveluk Kangen 8-1PcsReplacing HG-N and K-8 Filters

Loiesitarge$30.673.9★171 rev

Enagic Leveluk K8 Water Filter Machine

Kangen$2481.633.7★40 rev

Water Filter Replacement Kit by COOLVIVA. FC1 Replaces Enagic Leveluk F8 and HG-N Filters on K8 SD501 JRIV Machine. Features One FC1 Water Filter Two Cleaning Powders and a Reminder

COOLVIVA$135.914.3★54 rev

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$106.083.4★5 rev

F8 filter K-8 water purifier machine with 2 packs of cleaning powder by FAIR KANPAI

FAIR KANPAI$140.844.4★22 rev

Newest

by launch date

F8 Premium Water Filter Replacement Cartridge compatible with Kangen K8 and HG-N Water Ionizer Systems 1 Pack

Generic$87.072 rev

2mo ago

K8 Water Filter Replacement Cartridge Compatible with Enagic Kangen Leveluk F8 and HG-N water filters on K8 SD501 and JRIV machines Alkaline Water System

Elovener$65.925 rev

2mo ago

HG-N FC1 F8 Water Filter Replacement Compatible with Enagic Leveluk F8 and HG-N Filters for K8 and SD501 (2011+) JRIV Machine Machines 1 Pack

Zomixzo$58.467 rev

3mo ago

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$106.085 rev

6mo ago

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$108.3218 rev

6mo ago

What buyers say about enagic leveluk k8 water filter

What buyers praise and complain about, mined from review topics.

What buyers love

Filtration24%

“Perfect Fit Filters That Keep Water Clean and Fresh”

Assembly/Installation15%

“installation was quick”

Size-Overall14%

“Fits perfectly”

Value For Money11%

“worth it”

Quality-Overall10%

“Excellent filter, very good quality and price”

Efficiency6%

“Works well”

Leak-Proof4%

“I haven't noticed any leaks or problems”

Ease Of Cleaning4%

“It works, it cleans itself moore than the original brand”

Ease Of Use2%

“Its easy to use”

Durability1%

“They seem durable and well made”

What buyers complain about

Filtration25%

“When I took out the filter I see its half filled with water that is shaking inside”

Compatibility-Overall19%

“No good- does NOT fit Enagic SD501 machine as written”

Value For Money19%

“Not a good value”

Assembly/Installation13%

“cannot setup normal”

Size-Overall13%

“Doesnt fit”

Weight Heavy3%

“Its bulky for sure”

Top return reasons

Filtration29%

Compatibility-Overall25%

Size-Overall19%

Advertised Vs Actual Product8%

Leak-Proof3%

Water Resistance2%

Value For Money2%

Functionality-Overall2%

Connectivity-Overall2%

Defective Material/Parts2%

Common questions

Is enagic leveluk k8 water filter profitable to sell on Amazon United States?: The niche generates $79K/yr across 12 tracked products. 4 of 6 products launched in the last 360 days are still selling. 90-day search growth is +26.7%. Flapen's verdict: Skip it (40/100).
How competitive is the enagic leveluk k8 water filter niche?: 10 brands and 28 sellers compete. The top 5 products take 77% of clicks and top 5 brands hold 83% of demand.
What do buyers complain about in enagic leveluk k8 water filter?: Top complaints mined from reviews: Filtration, Compatibility-Overall, Value For Money. The return rate is 4.7%.
When does demand for enagic leveluk k8 water filter peak?: Demand peaks in Aug; the busiest month runs 2.1× the quietest.
What does it cost to enter the enagic leveluk k8 water filter niche?: Listings span $30.67–$2481.63; the average listing price is $295.17 (sweet spot $15–$100). The average incumbent carries 74 reviews — the moat a new listing must climb.