gxwh40l
Worth a lookShows a sweet-spot price point ($40.22 avg), but brand-locked demand (top 5 brands take 96% of clicks) keeps it on the watch list.
Avg price
Incredible$40.22avg listing price — sweet spot $15–$100
Returns
Great1.4%return rate — above 5% kills the launch gate
Conversion
Great9.1%search→purchase rate — share of searches ending in a sale
Price range
Good$12.19–$139.94cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
Good46%top-5 click share — leaders hold, buyers still browse
Market size
Okay$267K$267K/yr · 73K searches
Growth
Okay+3.8%90-day search growth — must beat 0% to launch
Quality gap
Okay4.6★avg incumbent rating — lower means beatable quality
Review moat
Bad6,655.51avg incumbent reviews — the moat a new listing must climb
Brand share
Bad96%top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, gxwh40l is a $267K/yr Amazon United States market (73K searches/yr). The top 5 brands hold 96% of demand. Verdict: Worth a look — 51/100.
Data updated Jul 6, 2026 · scored weekly · How we score niches
gxwh40l market data
- Units sold / yr
- 6K–8K
- avg 100–250/product
- Revenue / yr
- $241K–$322K
- units × avg price
- Conversion rate
- 9.1%
- Avg BSR
- #119
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 89%
- Out of stock
- 0.0%
- Avg brand age
- 66 months
- Avg seller age
- 152 days
Competition & brand share
The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.Brands
8 rising
Sellers
37
Top-5 brand share
96%
Top 20: 100%
Top-5 click share
46%
Top 20: 83%
Open market
2%
- PUREPLUS78%
- PUR10%
- GE4%
- Caehomly2%
- AQUA CREST2%
- ICEPURE1%
- Open — no brand owns it (2 brands, 2%)
Demand
Weekly Amazon search volume, last 23 weeks — +3.8% search growth over the last 90 days.Top gxwh40l search terms
- pureplus water filter replacement cartridge26K/yr
- pure plus water filter replacement13K/yr
- pureplus water filter10K/yr
- pure plus water filter7K/yr
- pureplus6K/yr
- gxwh40l replacement filter4K/yr
- gxwh40l4K/yr
- purplus water filter replacement2K/yr
Top gxwh40l 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
PUREPLUS 5 Micron 10 x 4.5 Whole House Sediment and Carbon Water Filter Replacement Cartridge for GE FXHTC GXWH40L GXWH35F GNWH38S Culligan RFC-BBSA WRC25HD PP10BB-CC Pentek RFC-BB 2Pack
PUREPLUS$28.704.7★7,844 rev
PUREPLUS ADQ747935 Replacement for LG LT1000P LT1000 Kenmore Elite 9980 LT1000PC MDJ64844601 ADQ74793501 LMXS28626S LFXS26973S LT120F Refrigerator Water and Air Filter 3Pack Model: RWF4700AC
PUREPLUS$25.604.6★9,924 rev
PUREPLUS DA97-17376B Replacement for Samsung HAF-QIN/EXP DA97-08006C RF28R7351SG RF28R7201SR RF28T5001SR RF23M8590SG RS27T5200SR RF24R7201SR RWF4200A Refrigerator Water Filter 3 Pack
PUREPLUS$26.104.6★15,442 rev
PUREPLUS 9690 Replacement for kenmore Elite 469690 LG LT700P RFC 1200A ADQ36006102 ADQ36006101 LFX28968ST RWF1052 RWF1200A LFXS29626S LFXS30766S LFX31925ST LFX31945ST Refrigerator Water Filter 4Pack
PUREPLUS$29.554.7★8,494 rev
PUR Plus Water Filter Replacement for Pitchers & Dispensers 6-Month Supply 3 Count Blue (PPF951K3)
PUR$19.714.5★28,194 rev
Newest
by launch date
5 Micron 10 x 4.5 Whole House Water Filter Compatible with GE FXHSC
Caehomly$36.7699 rev
RF9999 Replacement Filter for ALL PUR/PUR PLUS Faucet Filtration Systems
iSingo$23.88876 rev
PUREPLUS WFC5300A Under Sink Water Filter 22000 Gallons 99.99% Chlorine Reduction NSF/ANSI Certified Replacement for WFS5300A Under Counter Water Filtration System
PUREPLUS$39.55476 rev
PUREPLUS Coconut Shell Water Filter Cartridge | Activated Carbon Block CTO | Universal Whole House 5 Micron 10 inch Cartridge | Compatible with WFHDC8001 CB-BB-10 EPM EP-BB 3Pack
PUREPLUS$64.661,056 rev
PUREPLUS CRF950Z Pitcher Water Filter Replacement for Pur PPF900Z PPF951K PPT700W CR-1100C DS-1800Z CR-6000C PPT711W PPT711 PPT710W PPT111W PPT111R and All PUR Pitchers and Dispensers 4PACK
PUREPLUS$22.943,008 rev
Trending
90-day click momentum5 Micron 10 x 4.5 Whole House Water Filter Compatible with GE FXHSC
Caehomly$36.764.7★
RF9999 Replacement Filter for ALL PUR/PUR PLUS Faucet Filtration Systems
iSingo$23.884.6★
PUREPLUS 5 Micron 10 x 4.5 FXHTC Whole House Sediment and Carbon Water Filter Replacement Cartridge for GE GXWH40L GXWH35F GNWH38S Culligan RFC-BBSA WRC25HD RFC-BB PP10BB-CC WFHD13001 3Pack
PUREPLUS$40.824.7★
PUREPLUS Coconut Shell Water Filter Cartridge | Activated Carbon Block CTO | Universal Whole House 5 Micron 10 inch Cartridge | Compatible with WFHDC8001 CB-BB-10 EPM EP-BB 3Pack
PUREPLUS$64.664.6★
PUREPLUS 5 Micron 10 x 4.5 Whole House FXHTC Sediment and Carbon Water Filter Replacement Cartridge for GXWH40L GXWH35F GNWH38S RFC-BBSA WRC25HD PP10BB-CC RFC-BB WFHD13001 4Pack
PUREPLUS$54.284.7★
What buyers say about gxwh40l
What buyers praise and complain about, mined from review topics.What buyers love
“Filter works well”
“Cheap price”
“Fits like a glove”
“Amazing quality”
“As advertised”
“Easy to mount”
“Totally compatible”
“Easy to change out”
“Works great”
“Nothing leaking so far”
What buyers complain about
“Wrong filter”
“Leak”
“DOES NOT FIT OR COME CLOSE TO FITTING”
“Poor durability”
“Not up to pur quality”
“Bad smell”
“More cost,”
“they just don't work right”
“Clogged”
“Not compatible”
Top return reasons
Common questions
- Is gxwh40l profitable to sell on Amazon United States?
- The niche generates $267K/yr across 37 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +3.8%. Flapen's verdict: Worth a look (51/100).
- How competitive is the gxwh40l niche?
- 8 brands and 37 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 96% of demand.
- What do buyers complain about in gxwh40l?
- Top complaints mined from reviews: Filtration, Leak-Proof, Size-Overall. The return rate is 1.4%.
- What does it cost to enter the gxwh40l niche?
- Listings span $12.19–$139.94; the average listing price is $40.22 (sweet spot $15–$100). The average incumbent carries 6,656 reviews — the moat a new listing must climb.