bath filter
Skip itSoft demand (-31.3% this quarter) — this niche doesn't clear our bar today.
Avg price
Great£21.29avg listing price — sweet spot $15–$100
Returns
Great1.2%return rate — above 5% kills the launch gate
Price range
Great£10.32–£67.25cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Great4.3★avg incumbent rating — lower means beatable quality
Review moat
Great487.5avg incumbent reviews — the moat a new listing must climb
Conversion
Good4.5%search→purchase rate — share of searches ending in a sale
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Competition
Bad79%top-5 click share — a locked-up shelf
Market size
Bad£47K£47K/yr · 49K searches
Growth
Bad-31.3%90-day search growth — must beat 0% to launch
According to Flapen's Amazon United Kingdom niche tracking, bath filter is a £47K/yr Amazon United Kingdom market (49K searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Jan–Feb–Apr. Verdict: Skip it — 44/100.
Data updated Jul 22, 2026 · scored weekly · How we score niches
bath filter market data
- Units sold / yr
- 3K–3K
- avg 100–250/product
- Revenue / yr
- £53K–£64K
- units × avg price
- Conversion rate
- 4.5%
- Avg BSR
- #40
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 92%
- Out of stock
- 30.8%
- Avg brand age
- 29 months
- Avg seller age
- 231 days
Competition & brand share
The top 5 products capture 79% of clicks — a locked-up shelf that new listings rarely crack.Brands
10 rising
Sellers
64
Top-5 brand share
86%
Top 20: 100%
Top-5 click share
79%
Top 20: 100%
Open market
10%
- FEELSO36%
- Santevia20%
- MoKo16%
- Tubo10%
- Tylola4%
- Zeldko4%
- Open — no brand owns it (4 brands, 10%)
Demand & seasonality
Weekly Amazon search volume, last 78 weeks — -31.3% search growth over the last 90 days.Peak months: Jan, Feb, Apr · busiest ÷ quietest = 2.0×
Top bath filter search terms
- bath filter21K/yr
- bath water filter13K/yr
- bath filter for baby5K/yr
- bath tap filter6K/yr
- tubo bath filter4K/yr
Top bath 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 12 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
FEELSO Bath Filter with 2 Filter Cartridges Removes Chlorine 10 Stages BPA Free Bath Water Filter for Babies and Adults Shower Filter for Healthier Skin Hair White
FEELSO£26.654.5★983 rev
Santevia Bath Filter for Tub - Removes Chlorine | Baby Bath Filter Replacement
Santevia£17.674.0★2,321 rev
MoKo Bath Filter for Babies and Adults Bath Water Filter for Tub Removes Contaminants for Smoother Skin Hair Nails Portable Bath Filter with Shower Ball and Shampoo Brush White
MoKo£16.184.2★168 rev
Tubo Bath Filter 2.0 - The Original 8 Stage Bath Water Filter for Tub Faucet - Removes 99% of Chlorine and Contaminants - BPA-Free - Supports Healthy Skin & Hair - Easy Installation
Tubo£67.254.2★221 rev
FEELSO Bath Filter with 2 Filter Cartridges Removes Chlorine 10 Stages BPA Free Bath Tap Water Filter for Babies and Adults Shower Filter for Healthier Skin Hair - Silver
FEELSO£27.014.5★983 rev
Newest
by launch date
HOTUT Bath Filter for Tub 8-Stage Filtration 7 500 Gallons Reduce Contaminants and 99% of Chlorine Bath Ball Water Filter for Bathtub Supports Healthy Skin & Hair BPA-Free Easy Installation
HOTUT£11.333 rev
Tubo Bath Filter 2.0 - The Original 8 Stage Bath Water Filter for Tub Faucet - Removes 99% of Chlorine and Contaminants - BPA-Free - Supports Healthy Skin & Hair - Easy Installation
Tubo£67.25221 rev
FEELSO Bath Filter with 2 Filter Cartridges Removes Chlorine 10 Stages BPA Free Bath Tap Water Filter for Babies and Adults Shower Filter for Healthier Skin Hair - Dolphin Design
FEELSO£23.42983 rev
AOOTE 8 Stages Bath Filter Bath Water Filter for Tub with Shower Ball and Shampoo Brush Bath Filter for Babies and Adults Ball Bath Filter BPA Free Purify Your Bathwater for Healthier Skin and Hair
AOOTE£10.767 rev
FEELSO Bath Filter with 2 Filter Cartridges Removes Chlorine 10 Stages BPA Free Bath Water Filter for Babies and Adults Shower Filter for Healthier Skin Hair White
FEELSO£26.65983 rev
Trending
90-day click momentum
8 Stages Portable Bath Filter - Softens Hard Water Purifies for Sensitive Skin & Hair (2 Filter Elements)
CMANLNYK£15.275.0★
AOOTE 8 Stages Bath Filter Bath Water Filter for Tub with Shower Ball and Shampoo Brush Bath Filter for Babies and Adults Ball Bath Filter BPA Free Purify Your Bathwater for Healthier Skin and Hair
AOOTE£10.764.7★
FEELSO Bath Filter with 2 Filter Cartridges Removes Chlorine 10 Stages BPA Free Bath Tap Water Filter for Babies and Adults Shower Filter for Healthier Skin Hair - Silver
FEELSO£27.014.5★
HOTUT Bath Filter for Tub 8-Stage Filtration 7 500 Gallons Reduce Contaminants and 99% of Chlorine Bath Ball Water Filter for Bathtub Supports Healthy Skin & Hair BPA-Free Easy Installation
HOTUT£11.333.4★
FEELSO Bath Filter with 2 Filter Cartridges Removes Chlorine 10 Stages BPA Free Bath Water Filter for Babies and Adults Shower Filter for Healthier Skin Hair White
FEELSO£26.654.5★
What buyers say about bath filter
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to use”
“Nice to know we are filtering water for our baby to bath in”
“Very good quality”
“Believe it works and has helped”
“Works well and as described”
“It was very easy to install”
“it was really worth the money I spent”
“Great idea for solving hard water problem”
“Good invention”
“It's far softer”
What buyers complain about
“Honestly, its really hard to tell if this bath filter is actually doing anything to help our little ones eczema”
“Quality awful compared to the last one we bought unfortunately”
“Dint work at all”
“It's a bit awkward to put on”
“doesnt fit well”
“very crappy design to actually use it”
“Now it has gone mouldy after less than a month”
“Stick pads: Don't stick”
Top return reasons
Common questions
- Is bath filter profitable to sell on Amazon United Kingdom?
- The niche generates £47K/yr across 12 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is -31.3%. Flapen's verdict: Skip it (44/100).
- How competitive is the bath filter niche?
- 10 brands and 64 sellers compete. The top 5 products take 79% of clicks and top 5 brands hold 86% of demand.
- What do buyers complain about in bath filter?
- Top complaints mined from reviews: Filtration, Quality-Overall, Functionality-Overall. The return rate is 1.2%.
- When does demand for bath filter peak?
- Demand peaks in Jan–Feb–Apr; the busiest month runs 2.0× the quietest.
- What does it cost to enter the bath filter niche?
- Listings span £10.32–£67.25; the average listing price is £21.29 (sweet spot $15–$100). The average incumbent carries 488 reviews — the moat a new listing must climb.