---
title: "Products — pool liners 18ft round above ground - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/pool-liners-18ft-round-above-ground/products"
last_updated: "2026-08-06T02:16:41.866Z"
locale: en
meta:
  description: "Niche score 58/100 · $289K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:description": "Niche score 58/100 · $289K/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
  "og:title": "Products — pool liners 18ft round above ground - Flapen"
---

# **pool liners 18ft round above ground**

**Worth a look**

Shows low returns (0.9%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Market size 51Growth 93Conversion 19Competition 59Returns 95Price range 7Avg price 43Brand share 31Review moat 75Quality gap 67

**Returns**

**Incredible****0.9%**

return rate — above 5% kills the launch gate

**Growth**

**Great****+105.7%**

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

**Review moat**

**Great****498**

avg incumbent reviews — the moat a new listing must climb

**Quality gap**

**Good****4.3★**

avg incumbent rating — lower means beatable quality

**Competition**

**Good****49%**

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

**Market size**

**Good****$289K**

$289K/yr · 84K searches

**Avg price**

**Okay****$222.96**

avg listing price — sweet spot $15–$100

**Brand share**

**Okay****86%**

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

**Conversion**

**Bad****1.5%**

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

**Price range**

**Bad****$39.79–$950.88**

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

**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")

## Products