---
title: "Insinkerator Water Filter — £108K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/insinkerator-water-filter"
last_updated: "2026-07-31T10:55:59.617Z"
locale: en
meta:
description: "Niche score 43/100 · £108K/yr market · 16K searches/yr · £36.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 43/100 · £108K/yr market · 16K searches/yr · £36.36 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Insinkerator Water Filter — £108K/yr Amazon UK Niche (2026) - Flapen"
---
# **insinkerator water filter**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 26Growth 17Conversion 99Competition 7Returns 96Price range 95Avg price 95Brand share 0Review moat 73Quality gap 27
**Conversion**
**Incredible****19.0%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.8%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****£36.36**
avg listing price — sweet spot $15–$100
**Price range**
**Incredible****£16.48–£62.91**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Good****585.38**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****£108K**
£108K/yr · 16K searches
**Growth**
**Bad****-15.1%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****92%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United Kingdom niche tracking, insinkerator water filter is a £108K/yr Amazon United Kingdom market (16K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 43/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **insinkerator water filter market data**
- **Units sold / yr**
- **3K–3K**
- avg 250–500/product
- **Revenue / yr**
- **£91K–£109K**
- units × avg price
- **Conversion rate**
- **19.0%**
- **Avg BSR**
- **#112**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **75%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **135 months**
- **Avg seller age**
- **210 days**
## **Competition & brand share**
The top 5 products capture 92% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▲rising
**Sellers**
**21**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**92%**
Top 20: 100%
**Open market**
**0%**
- InSinkErator52% - Waterdrop38% - Finerfilters8% - Maxblue2%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -15.1% search growth over the last 90 days.
450350Holiday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/uk/diy-tools/insinkerator-water-filter/trend)
## **Top insinkerator 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.
0%15%£16K30%£32K45%£49K60%£65K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 8 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**InSinkErator F-701R Under Sink Water Filter Tap Water Purifier for Clean Drinking Water Exclusively for Hot Water Tap 454 Litre Capacity 2 Pack**InSinkErator**£62.91**4.7★1,057 rev](https://www.amazon.co.uk/dp/B00HJSUGTG) [2**Waterdrop Water Filters Replacement for InSinkErator Compatible with InSinkErator Hot Water Tap F701R F-701R 3US-AF01 HC-3300 GN-1100 3M AP3-765S 70020019835 (2)**Waterdrop**£26.40**4.5★1,164 rev](https://www.amazon.co.uk/dp/B07G2H1G4T) [3**Finerfilters FF-40 Water Filter Cartridge Compatible with InSinkErator F-701R and F-201R Hard Water Filter to fit Neo Tank Systems with A1 or A3 Head (2 Pack)**Finerfilters**£37.40**4.6★211 rev](https://www.amazon.co.uk/dp/B00E3TYSOS) [4**Waterdrop Water Filter Replacement for InSinkErator Compatible with InSinkErator Hot Water Tap F701R F-701R 3US-AF01 HC-3300 GN-1100 HC-1100 3M AP3-765S 70020019835 (1)**Waterdrop**£16.48**4.6★317 rev](https://www.amazon.co.uk/dp/B0891TS9XQ) [5**Genuine InSinkErator Hot Water Tap filter F-701R (NOT SO CALLED COMPATIBLES) for MODEL HC-1100 & MODEL GN-1100**InSinkErator**£45.80**4.5★134 rev](https://www.amazon.co.uk/dp/B004MTJRMW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Finerfilters FF-40 Water Filter Cartridge Compatible with InSinkErator F-701R and F-201R Hard Water Filter to fit Neo Tank Systems with A1 or A3 Head (1 Pack)**Finerfilters**£20.83**211 rev5y ago](https://www.amazon.co.uk/dp/B08PW33H3L) [**Maxblue Water Filters Replacement for InSinkErator Compatible with InSinkErator Hot Water Tap F701R F-701R 3US-AF01 HC-3300 GN-1100 HC-1100 3M AP3-765S 70020019835 (2)**Maxblue**£24.65**148 rev6y ago](https://www.amazon.co.uk/dp/B08DHG35HP) [**Waterdrop Water Filter Replacement for InSinkErator Compatible with InSinkErator Hot Water Tap F701R F-701R 3US-AF01 HC-3300 GN-1100 HC-1100 3M AP3-765S 70020019835 (1)**Waterdrop**£16.48**317 rev6y ago](https://www.amazon.co.uk/dp/B0891TS9XQ) [**Waterdrop Water Filters Replacement for InSinkErator Compatible with InSinkErator Hot Water Tap F701R F-701R 3US-AF01 HC-3300 GN-1100 3M AP3-765S 70020019835 (2)**Waterdrop**£26.40**1,164 rev7y ago](https://www.amazon.co.uk/dp/B07G2H1G4T) [**Finerfilters FF-40 Water Filter Cartridge Compatible with InSinkErator F-701R and F-201R Hard Water Filter to fit Neo Tank Systems with A1 or A3 Head (2 Pack)**Finerfilters**£37.40**211 rev13y ago](https://www.amazon.co.uk/dp/B00E3TYSOS)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**InSinkErator F-201R Replacement Water Filter Cartridges 2-Pack**InSinkErator**£56.41**4.6★**▲ 53%**](https://www.amazon.co.uk/dp/B000GQTCCA) [**Waterdrop Water Filters Replacement for InSinkErator Compatible with InSinkErator Hot Water Tap F701R F-701R 3US-AF01 HC-3300 GN-1100 3M AP3-765S 70020019835 (2)**Waterdrop**£26.40**4.5★**— 7%**](https://www.amazon.co.uk/dp/B07G2H1G4T) [**Finerfilters FF-40 Water Filter Cartridge Compatible with InSinkErator F-701R and F-201R Hard Water Filter to fit Neo Tank Systems with A1 or A3 Head (2 Pack)**Finerfilters**£37.40**4.6★**— 7%**](https://www.amazon.co.uk/dp/B00E3TYSOS) [**InSinkErator F-701R Under Sink Water Filter Tap Water Purifier for Clean Drinking Water Exclusively for Hot Water Tap 454 Litre Capacity 2 Pack**InSinkErator**£62.91**4.7★**— 1%**](https://www.amazon.co.uk/dp/B00HJSUGTG) [**Finerfilters FF-40 Water Filter Cartridge Compatible with InSinkErator F-701R and F-201R Hard Water Filter to fit Neo Tank Systems with A1 or A3 Head (1 Pack)**Finerfilters**£20.83**4.6★**▼ 11%**](https://www.amazon.co.uk/dp/B08PW33H3L)
**~~View all trending →~~**
## **What buyers say about insinkerator water filter**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Filtration**41%
*“Great water filters”*
**Value For Money**18%
*“Value for money”*
**Assembly/Installation**12%
*“Easy to install”*
**Quality-Overall**10%
*“Just as good as the original branded ones”*
**Size-Overall**9%
*“Bargain and perfect fit”*
**Efficiency**2%
*“works very well”*
**Ease Of Use**2%
*“easy to fit”*
**Leak-Proof**1%
*“No leaks”*
### **What buyers complain about **
**Leak-Proof**23%
*“Leak after use”*
**Filtration**20%
*“found that the filtration is not as good as the genuine filters”*
**Size-Overall**10%
*“Did not fit in the space we have, too long”*
**Ease Of Use**10%
*“really inconvenient”*
**Spray/Flow**5%
*“Also no good at controlling the flow of water”*
**Value For Money**3%
*“£300 plus labour now”*
**Maintenance And Repair**3%
*“Waiting for plumber”*
**Advertised Vs Actual Product**3%
*“not the two as stated”*
**Compatibility-Overall**3%
*“Where would we be without compatible items i ask myself”*
### **Top return reasons **
**Size-Overall**45%
**Filtration**15%
**Compatibility-Overall**14%
**Defective Material/Parts**6%
**Functionality-Overall**6%
**Advertised Vs Actual Product**3%
**Maintenance And Repair**3%
**Color**2%
**Connectivity-Overall**2%
**Product Condition**1%
## **Common questions**
- **Is insinkerator water filter profitable to sell on Amazon United Kingdom?**
- The niche generates £108K/yr across 8 tracked products. 90-day search growth is -15.1%. Flapen's verdict: Skip it (43/100).
- **How competitive is the insinkerator water filter niche?**
- 4 brands and 21 sellers compete. The top 5 products take 92% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in insinkerator water filter?**
- Top complaints mined from reviews: Leak-Proof, Filtration, Size-Overall. The return rate is 0.8%.
- **When does demand for insinkerator water filter peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the insinkerator water filter niche?**
- Listings span £16.48–£62.91; the average listing price is £36.36 (sweet spot $15–$100). The average incumbent carries 585 reviews — the moat a new listing must climb.
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