---
title: "Inground Pool Cover 18x36 — $37K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/inground-pool-cover-18x36"
last_updated: "2026-08-06T19:43:38.373Z"
locale: en
meta:
description: "Niche score 50/100 · $37K/yr market · 16K searches/yr · $206.25 avg price. A small market ($37K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 50/100 · $37K/yr market · 16K searches/yr · $206.25 avg price. A small market ($37K/yr) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Inground Pool Cover 18x36 — $37K/yr Amazon US Niche (2026) - Flapen"
---
# **inground pool cover 18x36**
**Worth a look**
Shows beatable incumbent ratings (4.2★), but a small market ($37K/yr) keeps it on the watch list.
Market size 9Growth 77Conversion 14Competition 65Returns 58Price range 15Avg price 45Brand share 52Review moat 68Quality gap 82
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Growth**
**Great****+65.7%**
90-day search growth — must beat 0% to launch
**Review moat**
**Good****775.14**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Good****46%**
top-5 click share — leaders hold, buyers still browse
**Returns**
**Good****2.7%**
return rate — above 5% kills the launch gate
**Brand share**
**Good****74%**
top-5 brand share — brands hold most of the demand
**Avg price**
**Okay****$206.25**
avg listing price — sweet spot $15–$100
**Price range**
**Bad****$42.94–$422.66**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Bad****1.1%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Bad****$37K**
$37K/yr · 16K searches
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, inground pool cover 18x36 is a $37K/yr Amazon United States market (16K searches/yr). The top 5 brands hold 74% of demand. Demand peaks in Aug–Sep–Oct. Verdict: Worth a look — 50/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **inground pool cover 18x36 market data**
- **Units sold / yr**
- **500–750**
- avg 0–100/product
- **Revenue / yr**
- **$103K–$155K**
- units × avg price
- **Conversion rate**
- **1.1%**
- **Avg BSR**
- **#273**
- **Page quality**
- **0%**
- **Prime**
- **73%**
- **Sponsored**
- **95%**
- **Out of stock**
- **11.7%**
- **Avg brand age**
- **44 months**
- **Avg seller age**
- **225 days**
## **Competition & brand share**
The top 5 products take 46% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **▲rising
**Sellers**
**21**
**Top-5 brand share**
**74%**
Top 20: 100%
**Top-5 click share**
**46%**
Top 20: 100%
**Open market**
**20%**
- VEVOR25% - Shop Square21% - CIDNN13% - DEIFRE9% - Blue Wave7% - In The Swim6%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +65.7% search growth over the last 90 days.
900700Spike '24Holiday '24Spike '25Prime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Aug, Sep, Oct · busiest ÷ quietest = 8.8×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/inground-pool-cover-18x36/trend)
## **Top inground pool cover 18x36 search terms**
- **18x36 pool cover**5K/yr+130.4%2.5% conv. - **inground pool cover 18x36**3K/yr+71.5%0.5% conv. - **18 x 36 pool cover**3K/yr+35.6%2.5% conv. - **18x36 pool covers for inground pools**4K/yr-9.7%1.8% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/inground-pool-cover-18x36/search-terms)
## **Top inground pool cover 18x36 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%$1K8%$3K12%$4K16%$6K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 22 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**VEVOR Inground Pool Safety Cover 18 x 36 Rectangle with 4x8ft Center End Step Safety Pool Covers Green Mesh 15-Year Warranty Triple Stitched MAX Strength Winter Safety Cover for Children & Pets**VEVOR**$404.26**4.5★380 rev](https://www.amazon.com/dp/B0D91GS8ZL) [2**18-Ft x 36-Ft Pool Cover for Inground Pools - Rectangle Winter Pool Cover for Inground Pools Extra Thick Material and Durable Design Cold and UV-Resistance Easy Installation Navy Blue**Shop Square**$68.22**3.8★369 rev](https://www.amazon.com/dp/B0CWB5PQML) [3**Inground Pool Cover Safety Fits Rectangle Swimming Pool Mesh Solid Pool Cover for Inground Pools Winter Pool Safety Cover Includes Safety Net and Installation Tools Blue (Blue Fits 18x36ft Pools)**CIDNN**$373.88**4.5★65 rev](https://www.amazon.com/dp/B0D8Q8FY65) [4**18-Ft x 36-Ft Pool Cover for Inground Pools - Premium Inground Winter Cover Extra Thick Material and Durable Design Cold and UV-Resistance Easy Installation Royal Blue**Shop Square**$135.30**4.4★57 rev](https://www.amazon.com/dp/B0CWBVCL21) [5**Inground Pool Safety Covers Rectangular Winter Pool Cover for Swimming Pools High Strength Mesh PP Included Installation Tools (Blue Fit 18x36ft Pools)**DEIFRE**$368.29**4.8★29 rev](https://www.amazon.com/dp/B0FJ273Y9C)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**VEVOR Solar Pool Cover 36 x 18 ft Rectangle Pool Bubble Cover 8 Mil Pools Solar Blanket with Bubble & PE Material Daytime Heat Absorption Nighttime Heat Retention Heat Retaining Solars Covers**VEVOR**$111.24**1,032 rev8mo ago](https://www.amazon.com/dp/B0G2BL1KQV) [**Inground Pool Safety Covers Rectangular Winter Pool Cover for Swimming Pools High Strength Mesh PP Included Installation Tools (Blue Fit 18x36ft Pools)**DEIFRE**$368.29**29 rev1y ago](https://www.amazon.com/dp/B0FJ273Y9C) [**Inground Pool Safety Covers Rectangular Winter Pool Cover for Swimming Pools High Strength Mesh PP Included Installation Tools (Blue (with 4x8ft Center Step) Fit 18x36ft+4x8ft Center Step Pools)**DEIFRE**$395.20**29 rev1y ago](https://www.amazon.com/dp/B0FJ2C8QBK) [**VEVOR Pool Safety Cover 18 x 36 Rectangle Safety Pool Covers Green Mesh 15-Year Warranty Triple Stitched MAX Strength Winter Safety Cover for Children & Pets**VEVOR**$374.56**380 rev1y ago](https://www.amazon.com/dp/B0DBVF76T4) [**VEVOR Inground Pool Safety Cover 18 x 36 Rectangle with 4x8ft Center End Step Safety Pool Covers Green Mesh 15-Year Warranty Triple Stitched MAX Strength Winter Safety Cover for Children & Pets**VEVOR**$404.26**380 rev2y ago](https://www.amazon.com/dp/B0D91GS8ZL)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**VEVOR Solar Pool Cover 36 x 18 ft Rectangle Pool Bubble Cover 8 Mil Pools Solar Blanket with Bubble & PE Material Daytime Heat Absorption Nighttime Heat Retention Heat Retaining Solars Covers**VEVOR**$111.24**4.4★**▲ 309%**](https://www.amazon.com/dp/B0G2BL1KQV) [**Inground Pool Safety Covers Rectangular Winter Pool Cover for Swimming Pools High Strength Mesh PP Included Installation Tools (Blue (with 4x8ft Center Step) Fit 18x36ft+4x8ft Center Step Pools)**DEIFRE**$395.20**4.8★**▲ 300%**](https://www.amazon.com/dp/B0FJ2C8QBK) [**VEVOR Solar Pool Cover 36 x 18 ft Rectangle Solar Cover 12 mil for Pools Inground Above Ground Swimming Pool Solar Blanket with Bubble Heat Retaining Solar Covers Blue**VEVOR**$159.95**4.4★**▲ 203%**](https://www.amazon.com/dp/B0D62K8G4C) [**In The Swim 18 x 36 Premium Blue Rectangle Solar Pool Cover 12 Mil for Solar Heating Above Ground Pools and Inground Pools**In The Swim**$177.69**4.1★**▲ 193%**](https://www.amazon.com/dp/B0CB7D3LWT) [**In The Swim 18 x 36 Standard Blue Rectangle Solar Pool Cover 8 Mil for Solar Heating Above Ground Pools and Inground Pools**In The Swim**$125.17**4.1★**▲ 159%**](https://www.amazon.com/dp/B0CB7D6XMH)
**~~View all trending →~~**
## **What buyers say about inground pool cover 18x36**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Size-Overall**22%
*“Fit our pool great”*
**Heating**13%
*“Heats the pool wonderfully”*
**Quality-Overall**12%
*“The cover seems to be well-made”*
**Advertised Vs Actual Product**9%
*“Better than expected”*
**Value For Money**6%
*“Best money Ive spent this year”*
**Durability**6%
*“Durability and Performance”*
**Ease Of Use**5%
*“Easy to use”*
**Thickness**5%
*“thickness is very good”*
**Water Resistance**3%
*“It has been a lifesaver for keeping leaves, twigs, and debris out of the water, which used to be a constant maintenance headache”*
**Assembly/Installation**2%
*“Simple to assemble”*
### **What buyers complain about **
**Quality-Overall**19%
*“Poor Quality”*
**Durability**19%
*“Already ripped and its been 3 weeks”*
**Size-Overall**16%
*“Size not accurate”*
**Thickness**15%
*“The thickness of the material is thicker than I thought”*
**Value For Money**6%
*“This one wasnt that much cheaper for being a lot less useful”*
**Strength**2%
*“Very flimsy”*
**Ease Of Use**2%
*“It is very difficult to roll and unroll”*
**Advertised Vs Actual Product**2%
*“Umm completely useless because its a foot shorter than advertised”*
**Leak-Proof**2%
*“Leaky seams defeat the purpose of preventing evaporation”*
**Water Resistance**2%
*“Didnt even last a week with the rain”*
### **Top return reasons **
**Size-Overall**50%
**Material Quality**8%
**Quality-Overall**7%
**Value For Money**5%
**Weight Heavy**4%
**Thin**4%
**Advertised Vs Actual Product**4%
**Durability**3%
**Functionality-Overall**3%
**Heating**3%
## **Common questions**
- **Is inground pool cover 18x36 profitable to sell on Amazon United States?**
- The niche generates $37K/yr across 22 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +65.7%. Flapen's verdict: Worth a look (50/100).
- **How competitive is the inground pool cover 18x36 niche?**
- 13 brands and 21 sellers compete. The top 5 products take 46% of clicks and top 5 brands hold 74% of demand.
- **What do buyers complain about in inground pool cover 18x36?**
- Top complaints mined from reviews: Quality-Overall, Durability, Size-Overall. The return rate is 2.7%.
- **When does demand for inground pool cover 18x36 peak?**
- Demand peaks in Aug–Sep–Oct; the busiest month runs 8.8× the quietest.
- **What does it cost to enter the inground pool cover 18x36 niche?**
- Listings span $42.94–$422.66; the average listing price is $206.25 (sweet spot $15–$100). The average incumbent carries 775 reviews — the moat a new listing must climb.
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