Kdf Water Filter
FailShoppers spend an estimated $36K a year here, so Kdf Water Filter is a Fail.
- Flapen Score
- 37 / 100Ranks 8,329 of 9,536 Tools & Home Improvement niches · −11 vs the category median of 4837
- Market size
- $36K/yr21K searches / yr
- 90-day growth
- -32.1%search demand this quarter
- Competition
- 56%top-5 click share · 13 brands · 68 sellers
Flapen Score
Kdf Water Filter against its category
The dotted line is the Tools & Home Improvement average. Past it, Kdf Water Filter is stronger. Inside it, weaker.
Market
The Kdf Water Filter market on Amazon at a glance
Shoppers on Amazon United States searched for Kdf Water Filter 21K times last year and spent an estimated $36K. The top 5 brands take 76% of clicks. Flapen scores it 37 out of 100, a Fail.
01 · Demand
An estimated 2.0% of those searches ended in a purchase.
Shoppers searched for this 21K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 2.0% of those searches ended in a purchase. Searches in the last 90 days moved -32.1% against the 90 days before. Searches, conversion and average price together put the market at an estimated $36K a year.
- Searches, last 12 months
- 21K
- Growth, 90 days vs prior 90
- -32.1%
- Conversion, latest week
- 2.0%
- Market size, estimated
- $36Ka year
- Top search term
- kdf water filter11K searches a year
02 · Price
A sale here is worth $84.96.
Listings sell for $84.96 on average, from $18.74 to $289.39. Amazon reports units sold in ranges. This niche sold 500 to 750 a year. The average listing sells 0 to 100 of them. At $84.96 that is $0 to $8K a year per listing.
- Average price
- $84.96inside the $15 to $100 sweet spot
- Price range
- $18.74–$289.39
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 500–750
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$8K
- Returns
- 2.3%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
87% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #248 within Water Filtration & Softeners. It carries 2,595 reviews at 4.42 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 87%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #248in Water Filtration & Softeners
- Average rating
- 4.42 starsAmazon United States average 4.42 stars
- Average reviews
- 2,595per listing
- Listings tracked
- 23
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 70 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 70 months
Products
Top Kdf Water Filter products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 28, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Express Water Kinetic Degradation Fluxion Replacement Filter 4.5 x 20
- Price
- $82.39
- Rating
- 4.5/5
- Reviews
- 327
- Age
- 9y ago

VEVOR KDF Whole House Water Filter 20 x 4.5 Inch Universal Fit Cartridge 100 000 Gal Capacity Coconut Shell GAC + Copper Zinc Alloy Reduces Heavy Metals Chlorine Bad Taste & Odor
- Price
- $43.96
- Rating
- 4.1/5
- Reviews
- 76
- Age
- 1y ago

SimPure 10 x 4.5 Whole House GAC Carbon and KDF Water Filter Cartridge
- Price
- $89.07
- Rating
- 4.5/5
- Reviews
- 29
- Age
- 2y ago

Express Water FLTWH2045CKP1 Whole House Replacement Filter Set 3 Pack
- Price
- $177.13
- Rating
- 4.7/5
- Reviews
- 226
- Age
- 3y ago

Camco Tastepure RV Water Filter - GAC & KDF Filtration - Made in the USA
- Price
- $18.74
- Rating
- 4.7/5
- Reviews
- 53,518
- Age
- 22y ago
Trending
estimated 90-day click momentum
Aquaboon 5 Micron 20 x 4.5 Whole House Water Filter Replacement Cartridge Set: CTO KDF Sediment for 3-Stage Water Filtration System 2 Pack
- Price
- $289.39
- Rating
- 4.8/5
- Reviews
- 25
- Age
- 1y ago

PUREPLUS 5 Micron 10 x 4.5 Whole House PP Sediment Carbon KDF Composite Heavy Metal Reduction Filter Cartridge for GE FXHTC GXWH40L GXWH35F GNWH38S Culligan RFC-BBSA WRC25HD Pentek RFC-BB 3Pack
- Price
- $55.77
- Rating
- 4.9/5
- Reviews
- 27
- Age
- 4y ago

PUREPLUS 5 Micron 10 x 4.5 Whole House PP Sediment Carbon KDF Composite Heavy Metal Reduction Filter Cartridge for GE FXHTC GXWH40L GXWH35F GNWH38S Culligan RFC-BBSA WRC25HD Pentek RFC-BB 2Pack
- Price
- $47.93
- Rating
- 4.9/5
- Reviews
- 27
- Age
- 4y ago

KDF Straight Leg Jeans for Women High Waisted Frayed Baggy Pants Stretchy Cropped Wide Leg Jeans Black
- Price
- $33.66
- Rating
- 4.4/5
- Reviews
- 1,271
- Age
- 2y ago

Express Water FLTWH2045CKP1 Whole House Replacement Filter Set 3 Pack
- Price
- $177.13
- Rating
- 4.7/5
- Reviews
- 226
- Age
- 3y ago
Newest
by launch date
VEVOR KDF Whole House Water Filter 20 x 4.5 Inch Universal Fit Cartridge 100 000 Gal Capacity Coconut Shell GAC + Copper Zinc Alloy Reduces Heavy Metals Chlorine Bad Taste & Odor
- Price
- $43.96
- Rating
- 4.1/5
- Reviews
- 76
- Age
- 1y ago

ICEPURE 1 Micron 2.5 x 10 Whole House Water Filter Coconut Shell Activated CTO Carbon and KDF Cartridge for Home Compatible with WFPFC8002 WFPFC9001 FXWTC SCWH-5 WHEF-WHWC AMZN-SCWH-5 3PACK
- Price
- $46.76
- Rating
- 4.5/5
- Reviews
- 65
- Age
- 1y ago

Aquaboon 5 Micron 20 x 4.5 Whole House Water Filter Replacement Cartridge Set: CTO KDF Sediment for 3-Stage Water Filtration System 2 Pack
- Price
- $289.39
- Rating
- 4.8/5
- Reviews
- 25
- Age
- 1y ago

H&G Lifestyles KDF Water Filter Cartridge Replacement for 20 x 4.5 Filter
- Price
- $84.61
- Rating
- 4.1/5
- Reviews
- 70
- Age
- 1y ago

PUREPLUS 5 Micron 20 x 4.5 Whole House KDF/GAC Water Filter Heavy Metal Removal Replacement Water Filter RFN20BB-CKDF 1PACK
- Price
- $76.66
- Rating
- 3.8/5
- Reviews
- 6
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 56% of clicks. Leaders hold, but buyers still shop past them.
Brands
13 falling
Sellers
68
Est. top-5 brand share
76%
Top 20: 100%
Est. top-5 click share
56%
Top 20: 96%
Open market
19%
- EXPRESS WATER36%
- PUREPLUS12%
- VEVOR11%
- SimPure10%
- KDF7%
- Camco6%
Demand
Kdf Water Filter search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: Mar · busiest ÷ quietest = 2.7× · 7 of 12 months tracked
Search terms
Top Kdf Water Filter search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- kdf water filter11K/yr
- kdf filter6K/yr
- kdf4K/yr
Reviews and returns
What reviews say buyers love and hate about Kdf Water Filter
We read the reviews and the return reasons for every product selling here.
“Worse filters I ever had”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
19 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Kdf Water Filter questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









