whirlpool reverse osmosis filters
Skip itWeak search conversion (0.8%) — this niche doesn't clear our bar today.
Avg price
Great$94.22avg listing price — sweet spot $15–$100
Review moat
Good568.18avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Returns
Good3.0%return rate — above 5% kills the launch gate
Price range
Okay$24.89–$213.93cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Bad79%top-5 click share — a locked-up shelf
Growth
Bad-20.5%90-day search growth — must beat 0% to launch
Brand share
Bad94%top-5 brand share — brand-locked demand
Market size
Bad$49K$49K/yr · 63K searches
Conversion
Bad0.8%search→purchase rate — share of searches ending in a sale
According to Flapen's Amazon United States niche tracking, whirlpool reverse osmosis filters is a $49K/yr Amazon United States market (63K searches/yr). The top 5 brands hold 94% of demand. Demand peaks in Jul. Verdict: Skip it — 31/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
whirlpool reverse osmosis filters market data
- Units sold / yr
- 500–750
- avg 0–100/product
- Revenue / yr
- $47K–$71K
- units × avg price
- Conversion rate
- 0.8%
- Avg BSR
- #610
- Page quality
- 0%
- Prime
- 91%
- Sponsored
- 64%
- Out of stock
- 3.9%
- Avg brand age
- 81 months
- Avg seller age
- 164 days
Competition & brand share
The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.Brands
5 falling
Sellers
11
Top-5 brand share
94%
Top 20: 94%
Top-5 click share
79%
Top 20: 100%
Open market
0%
- EcoPure52%
- Soft Water Supply32%
- KleenWater7%
- --6%
- GLACIER FRESH2%
- Water Filter Tec2%
- Open — no brand owns it (0%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -20.5% search growth over the last 90 days.Peak months: Jul · busiest ÷ quietest = 1.7×
Top whirlpool reverse osmosis filters search terms
- ecowater systems filters18K/yr
- whirlpool reverse osmosis filters11K/yr
- eco water filter replacement7K/yr
- ecowater reverse osmosis filters6K/yr
- ecowater filters replacement4K/yr
- ecowater ero-3752K/yr
- eco water filter3K/yr
- eco water filter 73829163K/yr
- whirlpool reverse osmosis replacement filters3K/yr
- ecowater filter replacement3K/yr
Top whirlpool reverse osmosis filters 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.
All 11 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
EcoPure Reverse Osmosis Filter and Membrane Set - Includes Membrane ECOROM and Pre/Post Filter Set ECOROF - Plus Reminder Tag - NSF Certified Authentic OEM Parts for ECOP30 RO Unit - EcoPure Only
Soft Water Supply$132.454.6★70 rev
EcoPure ECOROF Reverse Osmosis Replacement Filter Set Fits ECOP30 & Select Kenmore RO Systems NSF-Certified Reduces Lead Chlorine TDS & More 6-Month Life Easy Filter Changes
EcoPure$53.124.5★622 rev
EcoPure ECOP30 Premium Reverse Osmosis System Under Sink Drinking Water Filter System NSF-Certified Reduces Lead Chlorine and TDS Bottled-Quality Water Easy Filter Changes
EcoPure$213.934.2★214 rev
KW-REVO-manifold Retro-fit Replacement Reverse Osmosis Water Filter System for EcoWater Model ERO 335 and ERO 375 Made in the USA
KleenWater$211.514.7★16 rev
EcoPure ECOROM Reverse Osmosis Membrane Replacement Fits ECOP30 & Select Kenmore & Brita RO Systems NSF-Certified Stage 2 Filter Reduces TDS Lead Chlorine & More 13 Year Life Easy Changes
EcoPure$64.514.6★569 rev
Newest
by launch dateEcoPure Reverse Osmosis Filter and Membrane Set - Includes Membrane ECOROM and Pre/Post Filter Set ECOROF - Plus Reminder Tag - NSF Certified Authentic OEM Parts for ECOP30 RO Unit - EcoPure Only
Soft Water Supply$132.4570 rev
EcoPure Reverse Osmosis Filter Pair - Includes Pre/Post Filter Set (ECOROF) - Includes Service Reminder Tag - NSF Certified Authentic OEM Parts for ECOP30 RO Unit
Soft Water Supply$60.4224 rev
NSF Certified 3 Stage Reverse Osmosis RO Water Filters Replacement
Water Filter Tec$28.197 rev
KW-REVO-manifold Retro-fit Replacement Reverse Osmosis Water Filter System for EcoWater Model ERO 335 and ERO 375 Made in the USA
KleenWater$211.5116 rev
Northstar Reverse Osmosis Filter Set - Contains Membrane 7287514 and New Pre and Post Filter Set NSROPF4 (Replacement for set 7287506) with Maintenance Reminder Tag - Authentic NorthStar OEM
--$158.98219 rev
Trending
90-day click momentumEcoPure ECOP30 Premium Reverse Osmosis System Under Sink Drinking Water Filter System NSF-Certified Reduces Lead Chlorine and TDS Bottled-Quality Water Easy Filter Changes
EcoPure$213.934.2★
GLACIER FRESH UKF8001 Whirlpool Refrigerator Water Filter 4 3 Pack
GLACIER FRESH$24.894.7★
EcoPure ECOROM Reverse Osmosis Membrane Replacement Fits ECOP30 & Select Kenmore & Brita RO Systems NSF-Certified Stage 2 Filter Reduces TDS Lead Chlorine & More 13 Year Life Easy Changes
EcoPure$64.514.6★
EcoPure ECOROF Reverse Osmosis Replacement Filter Set Fits ECOP30 & Select Kenmore RO Systems NSF-Certified Reduces Lead Chlorine TDS & More 6-Month Life Easy Filter Changes
EcoPure$53.124.5★
EcoPure Reverse Osmosis Filter Pair - Includes Pre/Post Filter Set (ECOROF) - Includes Service Reminder Tag - NSF Certified Authentic OEM Parts for ECOP30 RO Unit
Soft Water Supply$60.424.3★
What buyers say about whirlpool reverse osmosis filters
What buyers praise and complain about, mined from review topics.What buyers love
“Reliable and most efficient filtre I ever used”
“Good fit”
“Great quality system”
“are noticably cheaper”
“Easy to install”
“We are very happy with this product that fits in our Whirlpool WHEERM reverse osmosis system”
“Works well”
“Exactly as described”
“lasts just as long”
“they fit perfectly with no signs of leaking”
What buyers complain about
“It didnt look like my other filter”
“Very costly in long term”
“One or more of the filters leaked, and no, it wasn't an O-ring failure”
“Doesn't fit whirlpool system”
“Don't trust this product description on Amazon”
“This IS an inexpensive option BUT cheaply made”
“it will not fit”
“clogs in less than 2 weeks”
“Cannot be replaced, must buy new unit,”
“Clogs very fast”
Top return reasons
Common questions
- Is whirlpool reverse osmosis filters profitable to sell on Amazon United States?
- The niche generates $49K/yr across 11 tracked products. 90-day search growth is -20.5%. Flapen's verdict: Skip it (31/100).
- How competitive is the whirlpool reverse osmosis filters niche?
- 5 brands and 11 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 94% of demand.
- What do buyers complain about in whirlpool reverse osmosis filters?
- Top complaints mined from reviews: Filtration, Value For Money, Leak-Proof. The return rate is 3.0%.
- When does demand for whirlpool reverse osmosis filters peak?
- Demand peaks in Jul; the busiest month runs 1.7× the quietest.
- What does it cost to enter the whirlpool reverse osmosis filters niche?
- Listings span $24.89–$213.93; the average listing price is $94.22 (sweet spot $15–$100). The average incumbent carries 568 reviews — the moat a new listing must climb.