Di Filter
FailThe top 5 brands take 97% of clicks, so Di Filter is a Fail.
- Flapen Score
- 47 / 100Ranks 2,474 of 3,978 Pet Supplies niches · −4 vs the category median of 5147
- Market size
- $115K/yr29K searches / yr
- 90-day growth
- -3.4%search demand this quarter
- Competition
- 52%top-5 click share · 7 brands · 16 sellers
Flapen Score
Di Filter against its category
The dotted line is the Pet Supplies average. Past it, Di Filter is stronger. Inside it, weaker.
Market
The Di Filter market on Amazon at a glance
Shoppers on Amazon United States searched for Di Filter 29K times last year and spent an estimated $115K. The top 5 brands take 97% of clicks. Flapen scores it 47 out of 100, a Fail.
01 · Demand
An estimated 8.2% of those searches ended in a purchase.
Shoppers searched for this 29K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 8.2% of those searches ended in a purchase. Searches in the last 90 days moved -3.4% against the 90 days before. Searches, conversion and average price together put the market at an estimated $115K a year.
- Searches, last 12 months
- 29K
- Growth, 90 days vs prior 90
- -3.4%
- Conversion, latest week
- 8.2%
- Market size, estimated
- $115Ka year
- Top search term
- di filter8K searches a year
02 · Price
A sale here is worth $47.82.
Listings sell for $47.82 on average, from $7.49 to $151.98. Amazon reports units sold in ranges. This niche sold 2K to 3K a year. The average listing sells 0 to 100 of them. At $47.82 that is $0 to $5K a year per listing.
- Average price
- $47.82inside the $15 to $100 sweet spot
- Price range
- $7.49–$151.98
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 2K–3K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$5K
- Returns
- 2.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
50% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 4.5% of listings are out of stock. The average listing ranks #808 within Fish & Aquatic Pets. It carries 749 reviews at 4.43 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 50%
- Prime listings
- 100%
- Out of stock, average day
- 4.5%
- Average rank
- #808in Fish & Aquatic Pets
- Average rating
- 4.43 starsAmazon United States average 4.42 stars
- Average reviews
- 749per listing
- Listings tracked
- 26
04 · Newcomers
0 of last year's 2 launches cleared the first-year sales bar.
2 products launched here in the last 12 months. 0 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 81 months on average, so the names here are established.
- Launched, last 12 months
- 2
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 81 months
Products
Top Di 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 17, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
Aquatic Life RO Buddie Aquarium Filter Replacement Cartridge Set 3 Pack (Sediment Carbon Color-Changing DI Resin) Inline Cartridges for Clear Safe Aquarium Water
- Price
- $36.49
- Rating
- 4.7/5
- Reviews
- 1,031
- Age
- 9y ago

Aquatic Life RO Buddie 4-Stage Aquarium Water Filter System Reverse Osmosis RO/DI Filtration Unit for Fish Tank Fountains and More 50 GPD (Gallons Per Day)
- Price
- $68.85
- Rating
- 4.5/5
- Reviews
- 5,036
- Age
- 21y ago

Aquatic Life Twist-In Reverse Osmosis Aquarium Water Filter Replacement Cartridge Pack Includes 75 GPD Membrane Sediment Carbon Block and Deionization DI Filters for 3 and 4-Stage RO/DI System
- Price
- $74.32
- Rating
- 4.7/5
- Reviews
- 391
- Age
- 8y ago

Aquatic Life DI Color Changing Mixed Bed Resin Cartridge Aquarium Hydroponics
- Price
- $22.57
- Rating
- 4.6/5
- Reviews
- 1,424
- Age
- 13y ago

Ceoighe 3 Pack Aquarium Filter Replacement Cartridge Set Compatible with AquaticLife RO Buddie Inline Cartridges for Clear Include Sediment Carbon Block Color Changing DI Resin and Quick Couplings
- Price
- $29.82
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 5mo ago
Trending
estimated 90-day click momentum
Ceoighe RO Replacement Cartridges Set (3-Pack) Compatible with AquaticLife RO Buddie Replacement Filters Include Carbon Block Filter Sediment Cartridge & 100GPD Membrane for Most RODI Systems
- Price
- $35.74
- Rating
- 2.7/5
- Reviews
- 3
- Age
- 5mo ago

Ceoighe 3 Pack Aquarium Filter Replacement Cartridge Set Compatible with AquaticLife RO Buddie Inline Cartridges for Clear Include Sediment Carbon Block Color Changing DI Resin and Quick Couplings
- Price
- $29.82
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 5mo ago

Max Water 2 Stage Deionized Spot Free Car Rinse Unit Premium Water Deionizer for Spotless Car Wash Water System RV and Motorcycle No Towel Drying - 2 DI Filters with 45-80 PSI & 3/4 Inlet/Outlet
- Price
- $102.88
- Rating
- 3.4/5
- Reviews
- 81
- Age
- 5y ago

Aquatic Life 4-Stage Reverse Osmosis Deionization Water Filter System RO/DI Filtration Unit with Carbon Plus Cartridge 100 GPD
- Price
- $151.98
- Rating
- 4.3/5
- Reviews
- 259
- Age
- 4y ago

SimPure Whole House Water Filter Housing (DB10P) 10 x 4.5 Sediment Carbon Filter Universal Housing Pre-Filtration System for Well and City Water 1 NPT Port Pressure Release
- Price
- $46.69
- Rating
- 4.4/5
- Reviews
- 2,988
- Age
- 6y ago
Newest
by launch date
Ceoighe 3 Pack Aquarium Filter Replacement Cartridge Set Compatible with AquaticLife RO Buddie Inline Cartridges for Clear Include Sediment Carbon Block Color Changing DI Resin and Quick Couplings
- Price
- $29.82
- Rating
- 5.0/5
- Reviews
- 2
- Age
- 5mo ago

Ceoighe RO Replacement Cartridges Set (3-Pack) Compatible with AquaticLife RO Buddie Replacement Filters Include Carbon Block Filter Sediment Cartridge & 100GPD Membrane for Most RODI Systems
- Price
- $35.74
- Rating
- 2.7/5
- Reviews
- 3
- Age
- 5mo ago

Refillable Mixed Bed DI Resin Filter Color Changing Deionized Resin 10-Inch Replacement Cartridge Car Wash Window Cleaning Aquarium (2 packs)
- Price
- $35.52
- Rating
- 4.2/5
- Reviews
- 27
- Age
- 1y ago

Di Filter Color Changing Mixed Bed Ion Exchange Resin Deionization DI Aquarium Filter Reduce TDS (2 Packs)
- Price
- $28.34
- Rating
- 3.9/5
- Reviews
- 16
- Age
- 1y ago

Aquatic Life Color Changing Deionization DI Resin for Hydroponic Reverse Osmosis Water Filter System RO Filtration Unit Single Canister
- Price
- $39.14
- Rating
- 4.6/5
- Reviews
- 27
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 52% of clicks. Leaders hold, but buyers still shop past them.
Brands
7 falling
Sellers
16
Est. top-5 brand share
97%
Top 20: 100%
Est. top-5 click share
52%
Top 20: 92%
Open market
1%
- Aquatic Life81%
- FilterFutureX7%
- Ceoighe6%
- Membrane Solutions2%
- MOPUEHEL2%
- SimPure2%
- Open — no brand owns it (1 brand, 1%)
Demand
Di Filter search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.3× · 9 of 12 months tracked
Search terms
Top Di Filter search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- di filter8K/yr
- aquatic life replacement filters8K/yr
- di resin cartridge4K/yr
- ro buddy replacement filters4K/yr
- aquatic life3K/yr
- ro buddie replacement filters3K/yr
Reviews and returns
What reviews say buyers love and hate about Di Filter
We read the reviews and the return reasons for every product selling here.
“filter exhausted early”
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.
18 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 Di 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









