---
title: "100mm Ducting — £41K/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/diy-tools/100mm-ducting"
last_updated: "2026-07-31T08:39:32.666Z"
locale: en
meta:
description: "Niche score 50/100 · £41K/yr market · 83K searches/yr · £9.85 avg price. A small market ($41K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · £41K/yr market · 83K searches/yr · £9.85 avg price. A small market ($41K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "100mm Ducting — £41K/yr Amazon UK Niche (2026) - Flapen"
---
# **100mm ducting**
**Worth a look**
Shows low returns (1.6%), but a small market ($41K/yr) keeps it on the watch list.
Market size 10Growth 53Conversion 58Competition 65Returns 83Price range 33Avg price 32Brand share 60Review moat 48Quality gap 53
**Returns**
**Great****1.6%**
return rate — above 5% kills the launch gate
**Competition**
**Good****46%**
top-5 click share — leaders hold, buyers still browse
**Brand share**
**Good****69%**
top-5 brand share — brands hold most of the demand
**Conversion**
**Good****5.0%**
search→purchase rate — share of searches ending in a sale
**Growth**
**Good****+24.6%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Okay****1,676.89**
avg incumbent reviews — the moat a new listing must climb
**Price range**
**Okay****£4.21–£20.36**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Okay****£9.85**
avg listing price — sweet spot $15–$100
**Market size**
**Bad****£41K**
£41K/yr · 83K searches
According to Flapen's Amazon United Kingdom niche tracking, 100mm ducting is a £41K/yr Amazon United Kingdom market (83K searches/yr). The top 5 brands hold 69% of demand. Verdict: Worth a look — 50/100.
Data updated Jul 22, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **100mm ducting market data**
- **Units sold / yr**
- **4K–5K**
- avg 100–250/product
- **Revenue / yr**
- **£39K–£49K**
- units × avg price
- **Conversion rate**
- **5.0%**
- **Avg BSR**
- **#67**
- **Page quality**
- **0%**
- **Prime**
- **97%**
- **Sponsored**
- **86%**
- **Out of stock**
- **1.0%**
- **Avg brand age**
- **41 months**
- **Avg seller age**
- **196 days**
## **Competition & brand share**
The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**21 **▼falling
**Sellers**
**32**
**Top-5 brand share**
**69%**
Top 20: 99%
**Top-5 click share**
**46%**
Top 20: 82%
**Open market**
**26%**
- Hon&Guan38% - Fantronix14% - Kair7% - AC Infinity6% - YJHome5% - 22.5 Team Controls4%
## **Demand & seasonality**
Weekly Amazon search volume, last 86 weeks — +24.6% search growth over the last 90 days.
4K3KSpike '25Prime Day '25Black Friday '25Spike '26Prime Day '26 seasonDecJanFebMarAprMayJunJulAugSepOctNovDecJanFebMarAprMayJun
No pronounced peak months · busiest ÷ quietest = 1.7×
[**Open Trend **](https://flapen.com/research/uk/diy-tools/100mm-ducting/trend)
## **Top 100mm ducting search terms**
- **ducting**20K/yr+60.1%1.0% conv. - **100mm ducting**23K/yr+9.3%6.3% conv. - **100mm flexible ducting**8K/yr+16.2%7.6% conv. - **ducting pipe**6K/yr+58.7%1.8% conv. - **4 inch ducting**6K/yr+31.7%6.2% conv. - **flexible ducting**5K/yr+50.0%1.5% conv. - **extractor fan ducting**7K/yr-30.5%2.7% conv. - **100mm ducting pipe**4K/yr+4.4%7.0% conv. - **100mm pipe**4K/yr+15.7%4.0% conv. [**All search terms **](https://flapen.com/research/uk/diy-tools/100mm-ducting/search-terms)
## **Top 100mm ducting 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%4%£2K8%£3K12%£5K16%£7K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Hon&Guan Aluminium PVC Ventilation Air Ducting 4 Inch Flexible Vent Hose Pipe for Extractor Fan Hydroponics(ø100mm*5m White)**Hon&Guan**£11.03**4.2★2,739 rev](https://www.amazon.co.uk/dp/B07C7VKFRH) [2**Hon&Guan 4 Inch Aluminium PVC Ventilation Air Ducting Flexible Hose 100mm with 2pcs Clamps for Universal Tumble Dryer Cooker Hood Extractor Fan(100mm*5m Black)**Hon&Guan**£10.70**4.2★2,739 rev](https://www.amazon.co.uk/dp/B0BYP1FFRT) [3**Fantronix Flexible Vent Hose 100mm (4 Inch) Universal Tumble Dryer Cooker Hood & Extractor Fan Air Duct 3 Metre Length**Fantronix**£7.44**4.4★738 rev](https://www.amazon.co.uk/dp/B08BRZB7Q7) [4**AC Infinity Flexible 100mm Aluminum Ducting Heavy-Duty Four-Layer Protection 2.4m Long for Heating Cooling Ventilation and Exhaust 4 Ducting 8 ft. Long**AC Infinity**£11.07**4.6★34,148 rev](https://www.amazon.co.uk/dp/B07WRDTX4C) [5**Hon&Guan 100mm / 4 Inch Flexible Aluminium Foil Ventilation Ducting 2m Vent Hose with 2 Clamps for Tumble Dryer Grow Tent and Heater**Hon&Guan**£7.37**4.4★2,165 rev](https://www.amazon.co.uk/dp/B07CXPC2FG)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Central Technology Systems 100mm Flexible Polyurethane Ducting Hose for Dust and Fume Extraction Woodworking Vacuum Systems - 1 Metre**Central Technology Systems**£16.56**1 rev2mo ago](https://www.amazon.co.uk/dp/B0H1NFXVYC) [**Hon&Guan 150mm / 6 inch Aluminium PVC Ventilation Air Ducting 5m Flexible Vent Hose Pipe for Extractor Fan Tumble Dryer Grow Tent and Heater**Hon&Guan**£16.70**2,739 rev2mo ago](https://www.amazon.co.uk/dp/B0GQ4HGNXL) [**Flexible Ventilation Duct 4 Inch Aluminium PVC Ventilation Ducting Hose for Universal Tumble Dryer Vent Hoses Cooker Hood Ducting Extractor Fan with 2 Hose Clamps(100mm x 2.5m Black)**SHUTIANYA**£5.92**12 rev3mo ago](https://www.amazon.co.uk/dp/B0GL1JJQ9M) [**YJHome 100mm Ducting 6m Long 4 Inch Flexible Vent Hose with 2 Duct Clamps Heavy-Duty Three Layer Protection PVC Air Ducting for Cooker Hood Tumble Dryer Duct Fan Extractor Fan**YJHome**£11.93**223 rev5mo ago](https://www.amazon.co.uk/dp/B0GK1HF22D) [**HG PLVTII 100mm Ducting 4 Inch Flexible Air Ducting Pipe 3m Aluminium PVC Vent Hose with 2 Clamps Heavy Duty for Extractor Fan Cooker Hood Tumble Dryer Hydroponics White**HG PLVTII**£9.60**21 rev6mo ago](https://www.amazon.co.uk/dp/B0GHS6J71P)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**HG PLVTII 100mm Ducting 4 Inch Flexible Air Ducting Pipe 3m Aluminium PVC Vent Hose with 2 Clamps Heavy Duty for Extractor Fan Cooker Hood Tumble Dryer Hydroponics White**HG PLVTII**£9.60**4.2★**▲ 184%**](https://www.amazon.co.uk/dp/B0GHS6J71P) [**YJHome 100mm Ducting 6m Long 4 Inch Flexible Vent Hose with 2 Duct Clamps Heavy-Duty Three Layer Protection PVC Air Ducting for Cooker Hood Tumble Dryer Duct Fan Extractor Fan**YJHome**£11.93**4.4★**▲ 184%**](https://www.amazon.co.uk/dp/B0GK1HF22D) [**Xinjiayi 100mm Ducting Length 3.4m PVC Aluminium Flexible**Xinjiayi**£8.30**5.0★**▲ 184%**](https://www.amazon.co.uk/dp/B0GH78QPTT) [**Hon&Guan 150mm / 6 inch Aluminium PVC Ventilation Air Ducting 5m Flexible Vent Hose Pipe for Extractor Fan Tumble Dryer Grow Tent and Heater**Hon&Guan**£16.70**4.2★**▲ 183%**](https://www.amazon.co.uk/dp/B0GQ4HGNXL) [**Central Technology Systems 100mm Flexible Polyurethane Ducting Hose for Dust and Fume Extraction Woodworking Vacuum Systems - 1 Metre**Central Technology Systems**£16.56**5.0★**▲ 182%**](https://www.amazon.co.uk/dp/B0H1NFXVYC)
**~~View all trending →~~**
## **What buyers say about 100mm ducting**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**27%
*“feels well made”*
**Advertised Vs Actual Product**17%
*“The product worked”*
**Value For Money**17%
*“Value for money”*
**Size-Overall**10%
*“Good fit”*
**Assembly/Installation**4%
*“simple to install”*
**Ease Of Use**3%
*“It has plenty of uses”*
**Strength**3%
*“sturdy”*
**Security**2%
*“Securing clips come with lugs so no need for tools”*
**Compatibility-Overall**2%
*“This is exactly what it looks like it's very good it is compatible with 100 mil extract fans it's pretty durable I've stepped on it”*
**Grip**2%
*“they dont slide”*
### **What buyers complain about **
**Size-Overall**18%
*“it's clearly too big”*
**Quality-Overall**13%
*“Bad quality control”*
**Advertised Vs Actual Product**13%
*“Size not as listed”*
**Thickness**10%
*“Not particularly thick plastic so has a bit of give to it”*
**Smell**8%
*“a really toxic acrid smell”*
**Strength**6%
*“It seems delicate”*
**Stretchability/Expandability/Elasticity**3%
*“Not 5m long fully stretched”*
**Rusts/Corrodes**3%
*“this one should not get rusty”*
**Material Quality**3%
*“Flimsy material”*
**Durability**3%
*“unfortunately the AC unit didn't last”*
### **Top return reasons **
**Size-Overall**71%
**Compatibility-Overall**8%
**Functionality-Overall**3%
**Quality-Overall**3%
**Smell**2%
**Advertised Vs Actual Product**2%
**Material Quality**2%
**Thin**1%
**Defective Material/Parts**1%
**Strength**1%
## **Common questions**
- **Is 100mm ducting profitable to sell on Amazon United Kingdom?**
- The niche generates £41K/yr across 37 tracked products. 2 of 15 products launched in the last 360 days are still selling. 90-day search growth is +24.6%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the 100mm ducting niche?**
- 21 brands and 32 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 69% of demand.
- **What do buyers complain about in 100mm ducting?**
- Top complaints mined from reviews: Size-Overall, Quality-Overall, Advertised Vs Actual Product. The return rate is 1.6%.
- **When does demand for 100mm ducting peak?**
- Demand is steady year-round — the busiest month runs 1.7× the quietest.
- **What does it cost to enter the 100mm ducting niche?**
- Listings span £4.21–£20.36; the average listing price is £9.85 (sweet spot $15–$100). The average incumbent carries 1,677 reviews — the moat a new listing must climb.
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