---
title: "Products — check valve - Flapen"
canonical_url: "https://flapen.com/research/us/pet-supplies/check-valve/products"
last_updated: "2026-07-21T21:57:39.866Z"
locale: en
meta:
  description: "Niche score 38/100 · $76K/yr market · 211K searches/yr · $9.76 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:description": "Niche score 38/100 · $76K/yr market · 211K searches/yr · $9.76 avg price. Doesn't clear our bar today. Data updated Jul 2026."
  "og:title": "Products — check valve - Flapen"
---

# **check valve**

**Skip it**

A small market ($76K/yr) — this niche doesn't clear our bar today.

Market size 19Growth 33Conversion 46Competition 31Returns 65Price range 35Avg price 31Brand share 46Review moat 44Quality gap 47

**Returns**

**Good****2.4%**

return rate — above 6% kills the launch gate

**Quality gap**

**Okay****4.5★**

avg incumbent rating — lower means beatable quality

**Conversion**

**Okay****3.7%**

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

**Brand share**

**Okay****77%**

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

**Review moat**

**Okay****2,091.93**

avg incumbent reviews — the moat a new listing must climb

**Price range**

**Okay****$4.15–$20.77**

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

**Growth**

**Okay****+6.3%**

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

**Competition**

**Okay****66%**

top-5 click share — leaders hold, buyers still browse

**Avg price**

**Okay****$9.76**

avg listing price — sweet spot $15–$100

**Market size**

**Bad****$76K**

$76K/yr · 211K searches