---
title: "Trend — brita marella water filter cartridges - Flapen"
canonical_url: "https://flapen.com/research/uk/home-garden/brita-marella-water-filter-cartridges/trend"
last_updated: "2026-07-31T13:48:54.813Z"
locale: en
meta:
  description: "Niche score 44/100 · £57K/yr market · 41K searches/yr · £14.84 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 44/100 · £57K/yr market · 41K searches/yr · £14.84 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Trend — brita marella water filter cartridges - Flapen"
---

# **brita marella water filter cartridges**

**Skip it**

A small market ($57K/yr) — this niche doesn't clear our bar today.

Market size 14Growth 23Conversion 84Competition 21Returns 97Price range 70Avg price 74Brand share 27Review moat 21Quality gap 60

**Returns**

**Incredible****0.6%**

return rate — above 5% kills the launch gate

**Conversion**

**Great****9.3%**

search→purchase rate — share of searches ending in a sale

**Avg price**

**Good****£14.84**

avg listing price — sweet spot $15–$100

**Price range**

**Good****£10.82–£24.85**

cheapest to priciest tracked listing — scored on the share inside $15–$100

**Quality gap**

**Good****4.4★**

avg incumbent rating — lower means beatable quality

**Brand share**

**Okay****89%**

top-5 brand share — brands hold most of the demand

**Growth**

**Bad****-4.9%**

90-day search growth — must beat 0% to launch

**Competition**

**Bad****75%**

top-5 click share — a locked-up shelf

**Review moat**

**Bad****11,040.71**

avg incumbent reviews — the moat a new listing must climb

**Market size**

**Bad****£57K**

£57K/yr · 41K searches