Is berkey filter replacement profitable to sell on Amazon United States?

The niche generates $7.6M/yr across 14 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -9.5%. Flapen's verdict: Skip it (43/100).

How competitive is the berkey filter replacement niche?

6 brands and 28 sellers compete. The top 5 products take 67% of clicks and top 5 brands hold 96% of demand.

What do buyers complain about in berkey filter replacement?

Top complaints mined from reviews: Filtration, Leak-Proof, Value For Money. The return rate is 2.8%.

When does demand for berkey filter replacement peak?

Demand peaks in Oct; the busiest month runs 1.6× the quietest.

What does it cost to enter the berkey filter replacement niche?

Listings span $29.78–$470.91; the average listing price is $229.30 (sweet spot $15–$100). The average incumbent carries 1,376 reviews — the moat a new listing must climb.

berkey filter replacement

Skip it

Brand-locked demand (top 5 brands take 96% of clicks) — this niche doesn't clear our bar today.

Market size

Incredible$7.6M

$7.6M/yr · 1.0M searches

Returns

Good2.8%

return rate — above 5% kills the launch gate

Review moat

Good1,376

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Avg price

Okay$229.30

avg listing price — sweet spot $15–$100

Conversion

Okay3.2%

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

Competition

Okay67%

top-5 click share — leaders hold, buyers still browse

Growth

Bad-9.5%

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

Price range

Bad$29.78–$470.91

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

Brand share

Bad96%

top-5 brand share — brand-locked demand

Signals High Price

According to Flapen's Amazon United States niche tracking, berkey filter replacement is a $7.6M/yr Amazon United States market (1.0M searches/yr). The top 5 brands hold 96% of demand. Demand peaks in Oct. Verdict: Skip it — 43/100.

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

berkey filter replacement market data

Units sold / yr: 30K–40K; avg 2,000–2,500/product
Revenue / yr: $6.9M–$9.2M; units × avg price
Conversion rate: 3.2%
Avg BSR: #97
Page quality: 0%
Prime: 100%
Sponsored: 100%
Out of stock: 0.0%
Avg brand age: 50 months
Avg seller age: 158 days

Competition & brand share

The top 5 products take 67% of clicks — established leaders, but buyers still shop beyond them.

Brands

6 falling

Sellers

Top-5 brand share

96%

Top 20: 100%

Top-5 click share

67%

Top 20: 100%

Open market

Berkey60%
Purewell18%
Virego7%
Larayci6%
Filterlogic5%
MACIFECI4%

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -9.5% search growth over the last 90 days.

Peak months: Oct · busiest ÷ quietest = 1.6×

Open Trend

Top berkey filter replacement search terms

berkey water filter380K/yr -16.7%1.9% conv.
berkey water filter system220K/yr -4.6%1.1% conv.
berkey water filter replacement101K/yr -6.9%5.3% conv.
berkey82K/yr -9.8%0.8% conv.
berkley water filter system35K/yr +38.6%0.6% conv.
berkey filters36K/yr +1.3%4.0% conv.
big berkey water filter system26K/yr -6.6%1.6% conv.
berkey filter replacement25K/yr -25.4%5.1% conv.
berkey filter21K/yr -15.1%3.0% conv.
berkey water filters15K/yr +9.8%2.7% conv.

All search terms

Top berkey 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.

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

All 14 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Big Berkey Gravity-Fed Stainless Steel Countertop Water Filter System 2.25 Gallon with 2 Authentic Black Berkey Elements BB9-2 Filters

Berkey$361.944.5★4,183 rev

Purewell 3-Stage 0.01m Ultra-Filtration Gravity Water Filter System NSF/ANSI 42&372 Certification 304 Stainless Steel Countertop System with 2 Filters and Stand Reduce 99% Chlorine 2.25G PW-OB

Purewell$108.944.4★1,967 rev

Big Berkey Gravity-Fed Water Filter System with 2 Black Berkey Elements Plus Deluxe 7 Stainless Steel Water View Spigot

Berkey$410.424.4★480 rev

Virego Gravity Water Filters for Berkey Water Filter Replacement Replacement for BB9-2 Black Filter & for PF-2 Fluoride Filters Combo Packs Compatible with Berkey Gravity Water Filter System NSF 42

Virego$58.044.4★1,142 rev

Travel Berkey Gravity-Fed Water Filter with 2 Black Berkey ElementsEnjoy Potable Water While Camping RVing Off-Grid Emergencies Every Day at Home

Berkey$320.864.5★3,244 rev

Newest

by launch date

Berkey - Phoenix Gravity New Millennium Edition Filter Elements -NSF 42/372- NMCL Endorsed Replacement in Lieu of Black Berkey Elements BB9-2 Set of 2

Berkey$118.4449 rev

7mo ago

Water Filter Replacement for Berkey 2 Black Carbon Filters and 2 Fluoride Filters Compatible with Berkey Gravity Water Filter System

MACIFECI$53.97139 rev

2y ago

Larayci Water Filter Replacement for Berkey BB9-2 Black Carbon Filters

Larayci$53.38435 rev

2y ago

Purewell 2.25G Gravity Water Filter System with Water Level Window 3-Stage 0.01m Ultra-Filtration Stainless Steel Countertop System with 2 Filters and Stand Reduce 99% Chlorine PW-KS

Purewell$119.71697 rev

3y ago

Big Berkey Gravity-Fed Water Filter System with 2 Black Berkey Elements Plus Deluxe 7 Stainless Steel Water View Spigot

Berkey$410.42480 rev

3y ago

What buyers say about berkey filter replacement

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

What buyers love

Filtration29%

“Filter Great”

Value For Money16%

“reasonably priced”

Quality-Overall10%

“Very nice and comes with all the necessary tools”

Advertised Vs Actual Product6%

“As advertised”

Efficiency6%

“Doing a good job”

Size-Overall6%

“Fits perfectly”

Assembly/Installation4%

“Easy to assemble”

Water Resistance2%

“The water good”

Ease Of Use2%

“Very convenient on my counter”

Ease Of Cleaning2%

“Easy to clean and use”

What buyers complain about

Filtration33%

“definitely not as fine a filter as some”

Leak-Proof11%

“Water just leaks out”

Value For Money6%

“Very expensive,”

Water Resistance5%

“The water just pours through”

Quality-Overall4%

“Decective”

Smell4%

“smells different after purifying”

Assembly/Installation3%

“Setup is harder than it needs to be”

Functionality-Overall3%

“Doesnt work”

Connectivity-Overall1%

“Plastic connection pieces break very easily”

Magnetic Strength/Adsorption1%

“Stainless Steel is NOT magnetic”

Top return reasons

Filtration33%

Size-Overall23%

Leak-Proof7%

Defective Material/Parts5%

Advertised Vs Actual Product5%

Functionality-Overall4%

Product Condition4%

Compatibility-Overall3%

Value For Money3%