pentair water filter
Worth a lookShows low returns (1.6%), but brand-locked demand (top 5 brands take 94% of clicks) keeps it on the watch list.
Returns
Great1.6%return rate — above 5% kills the launch gate
Avg price
Great$94.85avg listing price — sweet spot $15–$100
Market size
Great$860K$860K/yr · 191K searches
Competition
Great40%top-5 click share — an open shelf
Review moat
Good985.04avg incumbent reviews — the moat a new listing must climb
Conversion
Good4.7%search→purchase rate — share of searches ending in a sale
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-5.6%90-day search growth — must beat 0% to launch
Price range
Bad$13.50–$421.20cheapest to priciest tracked listing — scored on the share inside $15–$100
Brand share
Bad94%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, pentair water filter is a $860K/yr Amazon United States market (191K searches/yr). The top 5 brands hold 94% of demand. Verdict: Worth a look — 52/100.
Data updated Jul 28, 2026 · scored weekly · How we score niches
pentair water filter market data
- Units sold / yr
- 10K–13K
- avg 100–250/product
- Revenue / yr
- $949K–$1.2M
- units × avg price
- Conversion rate
- 4.7%
- Avg BSR
- #262
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 98%
- Out of stock
- 0.3%
- Avg brand age
- 77 months
- Avg seller age
- 148 days
Competition & brand share
Clicks spread well past the top 5 (40% combined) — an open shelf where new products get seen.Brands
9 flat
Sellers
112
Top-5 brand share
94%
Top 20: 100%
Top-5 click share
40%
Top 20: 74%
Open market
4%
- Pentek63%
- Everpure18%
- OMNIFilter7%
- SimPure3%
- Purevua2%
- Aquaboon2%
- Open — no brand owns it (3 brands, 4%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -5.6% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.2×
Top pentair water filter search terms
- big blue water filter30K/yr
- big blue filter25K/yr
- everpure water filter31K/yr
- pentair water filter28K/yr
- pentair water filters9K/yr
- pentair pentek big blue filter6K/yr
- pentek big blue filter 20 inch6K/yr
- big blue filter housing6K/yr
- pentair omnifilter6K/yr
- pentair everpure5K/yr
Top pentair 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Pentair Pentek 150233 Big Blue 20 x 4.5 Filter Housing
Pentek$65.254.4★595 rev
Pentair Everpure H-300 Quick-Change Water Filter Cartridge NSF Certified
Everpure$156.404.4★2,249 rev
Pentair Pentek DGD-5005-20 Big Blue Water Filter 20-Inch Whole House Sediment Filter Cartridge Replacement Dual-Gradient Density Spun Polypropylene 20 x 4.5 5 Micron (Pack of 2) White
Pentek$56.034.7★2,394 rev
Pentair Pentek DGD-5005-20 Big Blue Water Filter 20-Inch Whole House Sediment Filter Cartridge Replacement Dual-Gradient Density Spun Polypropylene 20 x 4.5 5 Micron Pack of 1 White
Pentek$28.414.7★2,394 rev
Pentair Pentek 150237 Big Blue 10 x 4.5 Filter Housing
Pentek$47.034.4★883 rev
Newest
by launch date
Purevua PWB20 Whole House Water Filter Housing Fits 20 x 4.5 Big Blue Filters Inline Pre-Filtration System for RV Home Well and City Water Sediment etc with 1 NPT Port Pressure Relief Valve
Purevua$62.5326 rev
Pentair OMNIFilter Big Blue 10 x 4.5 Water Filtration System Black/Blue
OMNIFilter$44.2021 rev
HQUA WF3-01 3-Stage Whole House Water Filtration System Reduces Heavy Metals (Lead Mercury Arsenic Cadmium Chromium) Chlorine Sediment Odor and VOCs
HQUA$343.44182 rev
Pentair Pentek DGD-5005-20 Big Blue Water Filter 20-Inch Whole House Sediment Filter Cartridge Replacement Dual-Gradient Density Spun Polypropylene 20 x 4.5 5 Micron (Pack of 2) White
Pentek$56.032,394 rev
Pentair Pentek DGD-5005 Big Blue Water Filter 10-Inch Whole House Sediment Filter Cartridge Replacement Dual-Gradient Density Spun Polypropylene 10 x 4.5 5 Micron Pack of 2
Pentek$34.94286 rev
Trending
90-day click momentumPurevua PWB20 Whole House Water Filter Housing Fits 20 x 4.5 Big Blue Filters Inline Pre-Filtration System for RV Home Well and City Water Sediment etc with 1 NPT Port Pressure Relief Valve
Purevua$62.534.6★
HQUA WF3-01 3-Stage Whole House Water Filtration System Reduces Heavy Metals (Lead Mercury Arsenic Cadmium Chromium) Chlorine Sediment Odor and VOCs
HQUA$343.444.4★
MewMore WHB20 Whole House Water Filter Housing Fit 20x4.5 Sediment etc Filters for Well and City Water Big Filter Blue Pre-Filtration System for Home 1 NPT Port Pressure Release
MewMore$59.314.2★
Pentair Pentek DGD-5005-20 Big Blue Water Filter 20-Inch Whole House Sediment Filter Cartridge Replacement Dual-Gradient Density Spun Polypropylene 20 x 4.5 5 Micron (Pack of 2) White
Pentek$56.034.7★
SimPure DB20P 20 *4.5 Whole House Sediment Water Filter Housing
SimPure$65.134.4★
What buyers say about pentair water filter
What buyers praise and complain about, mined from review topics.What buyers love
“Good quality filter”
“The build quality is excellent”
“Direct fit”
“Excellent price”
“As advertised”
“Works wonderfully”
“No leaking”
“Easy to use”
“my water smells great”
“Easy install”
What buyers complain about
“it's definitely a defective filter”
“started leaking last week”
“Overpriced”
“Cant believe quality control would be so bad”
“wont fit in my whole house canister”
“Don't last”
“It will crack your housing if your housing is clear cause a flood”
“had horrible sulpher smell”
“The mounting bracket is extremely flimsy wish it had flange that was one piece with the top”
“Beward of the faulty condition advertisement”
Top return reasons
Common questions
- Is pentair water filter profitable to sell on Amazon United States?
- The niche generates $860K/yr across 45 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -5.6%. Flapen's verdict: Worth a look (52/100).
- How competitive is the pentair water filter niche?
- 9 brands and 112 sellers compete. The top 5 products take 40% of clicks and top 5 brands hold 94% of demand.
- What do buyers complain about in pentair water filter?
- Top complaints mined from reviews: Filtration, Leak-Proof, Value For Money. The return rate is 1.6%.
- When does demand for pentair water filter peak?
- Demand is steady year-round — the busiest month runs 1.2× the quietest.
- What does it cost to enter the pentair water filter niche?
- Listings span $13.50–$421.20; the average listing price is $94.85 (sweet spot $15–$100). The average incumbent carries 985 reviews — the moat a new listing must climb.