---
title: "Bath Filter — £47K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/bath-filter"
last_updated: "2026-07-31T09:16:47.735Z"
locale: en
meta:
description: "Niche score 44/100 · £47K/yr market · 49K searches/yr · £21.29 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 44/100 · £47K/yr market · 49K searches/yr · £21.29 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Bath Filter — £47K/yr Amazon UK Niche (2026) - Flapen"
---
# **bath filter**
**Skip it**
Soft demand (-31.3% this quarter) — this niche doesn't clear our bar today.
Market size 12Growth 9Conversion 54Competition 17Returns 90Price range 88Avg price 91Brand share 31Review moat 76Quality gap 76
**Avg price**
**Great****£21.29**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.2%**
return rate — above 5% kills the launch gate
**Price range**
**Great****£10.32–£67.25**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Great****4.3★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Great****487.5**
avg incumbent reviews — the moat a new listing must climb
**Conversion**
**Good****4.5%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Okay****86%**
top-5 brand share — brands hold most of the demand
**Competition**
**Bad****79%**
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 ~~](https://flapen.com/research/methodology)
## **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.
2K1KSpike '25Prime Day '25Black Friday '25Spike '26 seasonFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
Peak months: Jan, Feb, Apr · busiest ÷ quietest = 2.0×
[**Open Trend **](https://flapen.com/research/uk/diy-tools/bath-filter/trend)
## **Top bath filter search terms**
- **bath filter**21K/yr-31.1%4.7% conv. - **bath water filter**13K/yr-38.7%5.1% conv. - **bath filter for baby**5K/yr-20.1%7.0% conv. - **bath tap filter**6K/yr-33.2%2.5% conv. - **tubo bath filter**4K/yr-20.1%5.2% conv. [**All search terms **](https://flapen.com/research/uk/diy-tools/bath-filter/search-terms)
## **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.
0%10%£5K20%£9K30%£14K40%£19K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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**£26.65**4.5★983 rev](https://www.amazon.co.uk/dp/B0DRVLNV11) [2**Santevia Bath Filter for Tub - Removes Chlorine | Baby Bath Filter Replacement**Santevia**£17.67**4.0★2,321 rev](https://www.amazon.co.uk/dp/B0742KFY9R) [3**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**£16.18**4.2★168 rev](https://www.amazon.co.uk/dp/B0DM81R526) [4**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**£67.25**4.2★221 rev](https://www.amazon.co.uk/dp/B0DTQ8H23D) [5**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**£27.01**4.5★983 rev](https://www.amazon.co.uk/dp/B0DRVKZ21H)
**~~View all top sellers →~~**
### **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**£11.33**3 rev5mo ago](https://www.amazon.co.uk/dp/B0GL221NPZ) [**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**£67.25**221 rev1y ago](https://www.amazon.co.uk/dp/B0DTQ8H23D) [**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**£23.42**983 rev1y ago](https://www.amazon.co.uk/dp/B0FBX2DPQ5) [**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**£10.76**7 rev1y ago](https://www.amazon.co.uk/dp/B0DZX7QZ67) [**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**£26.65**983 rev1y ago](https://www.amazon.co.uk/dp/B0DRVLNV11)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**8 Stages Portable Bath Filter - Softens Hard Water Purifies for Sensitive Skin & Hair (2 Filter Elements)**CMANLNYK**£15.27**5.0★**▲ 221%**](https://www.amazon.co.uk/dp/B0DD3G5ZYR) [**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**£10.76**4.7★**▲ 152%**](https://www.amazon.co.uk/dp/B0DZX7QZ67) [**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**£27.01**4.5★**▲ 130%**](https://www.amazon.co.uk/dp/B0DRVKZ21H) [**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**£11.33**3.4★**▲ 103%**](https://www.amazon.co.uk/dp/B0GL221NPZ) [**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**£26.65**4.5★**▲ 40%**](https://www.amazon.co.uk/dp/B0DRVLNV11)
**~~View all trending →~~**
## **What buyers say about bath filter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Use**19%
*“Easy to use”*
**Filtration**17%
*“Nice to know we are filtering water for our baby to bath in”*
**Quality-Overall**13%
*“Very good quality”*
**Efficiency**12%
*“Believe it works and has helped”*
**Advertised Vs Actual Product**9%
*“Works well and as described”*
**Assembly/Installation**6%
*“It was very easy to install”*
**Value For Money**4%
*“it was really worth the money I spent”*
**Water Resistance**3%
*“Great idea for solving hard water problem”*
**Design-Overall**3%
*“Good invention”*
**Soft Feel**3%
*“It's far softer”*
### **What buyers complain about **
**Filtration**22%
*“Honestly, its really hard to tell if this bath filter is actually doing anything to help our little ones eczema”*
**Quality-Overall**15%
*“Quality awful compared to the last one we bought unfortunately”*
**Functionality-Overall**15%
*“Dint work at all”*
**Ease Of Use**11%
*“It's a bit awkward to put on”*
**Size-Overall**11%
*“doesnt fit well”*
**Design-Overall**11%
*“very crappy design to actually use it”*
**Durability**11%
*“Now it has gone mouldy after less than a month”*
**Adhesion/Stickiness**4%
*“Stick pads: Don't stick”*
### **Top return reasons **
**Size-Overall**28%
**Filtration**16%
**Functionality-Overall**11%
**Compatibility-Overall**8%
**Add-Ons/Attachments**7%
**Defective Material/Parts**5%
**Quality-Overall**3%
**Water Resistance**3%
**Leak-Proof**2%
**Durability**2%
## **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.
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