---
title: "18x33 Winter Pool Cover Oval — $60K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/18x33-winter-pool-cover-oval"
last_updated: "2026-08-09T10:04:25.722Z"
locale: en
meta:
description: "Niche score 51/100 · $60K/yr market · 18K searches/yr. Brand-locked demand (top 5 brands take 97% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 51/100 · $60K/yr market · 18K searches/yr. Brand-locked demand (top 5 brands take 97% of clicks) keeps it on the watch list. Data updated Jul 2026."
"og:title": "18x33 Winter Pool Cover Oval — $60K/yr Amazon US Niche (2026) - Flapen"
---
# **18x33 winter pool cover oval**
**Worth a look**
Shows demand growing +253.5% this quarter, but brand-locked demand (top 5 brands take 97% of clicks) keeps it on the watch list.
Market size 15Growth 99Conversion 38Competition 20Returns 89Price range 44Avg price 72Brand share 7Review moat 72Quality gap 84
**Growth**
**Incredible****+253.5%**
90-day search growth — must beat 0% to launch
**Returns**
**Great****1.3%**
return rate — above 5% kills the launch gate
**Quality gap**
**Great****4.2★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Good****613.5**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Good****$107.66**
avg listing price — sweet spot $15–$100
**Price range**
**Okay****$57.77–$154.42**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Okay****3.1%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Bad****76%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****$60K**
$60K/yr · 18K searches
**Brand share**
**Bad****97%**
top-5 brand share — brand-locked demand
**Signals**[** Trending**](https://flapen.com/research/niches?market=us&signal=trending "Search growth > 100% (90d)") [** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, 18x33 winter pool cover oval is a $60K/yr Amazon United States market (18K searches/yr). The top 5 brands hold 97% of demand. Demand peaks in Aug–Sep–Oct. Verdict: Worth a look — 51/100.
Data updated Jul 24, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **18x33 winter pool cover oval market data**
- **Units sold / yr**
- **1K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$135K–$161K**
- units × avg price
- **Conversion rate**
- **3.1%**
- **Avg BSR**
- **#453**
- **Page quality**
- **0%**
- **Prime**
- **92%**
- **Sponsored**
- **83%**
- **Out of stock**
- **13.5%**
- **Avg brand age**
- **60 months**
- **Avg seller age**
- **232 days**
## **Competition & brand share**
The top 5 products capture 76% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**6 **▼falling
**Sellers**
**14**
**Top-5 brand share**
**97%**
Top 20: 100%
**Top-5 click share**
**76%**
Top 20: 100%
**Open market**
**0%**
- QH.HOME62% - Pool Mate13% - Robelle12% - Winter Block6% - iBirdie4% - Swimline3% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 97 weeks — +253.5% search growth over the last 90 days.
2K2KSpike '24Spike '25Prime Day '25Spike '26 seasonSepMarAugNovMarMay
Peak months: Aug, Sep, Oct · busiest ÷ quietest = 70.4×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/18x33-winter-pool-cover-oval/trend)
## **Top 18x33 winter pool cover oval search terms**
- **18x33 pool cover**5K/yr+358.7%2.2% conv. - **18 x 33 oval above ground pool winter cover**4K/yr+129.3%1.7% conv. - **18x33 winter pool cover oval**10K/yr+141.4%1.9% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/18x33-winter-pool-cover-oval/search-terms)
## **Top 18x33 winter pool cover oval 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%10%$6K20%$12K30%$18K40%$24K101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 12 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1![QH.HOME 18x33 Ft Oval Pool Cover for Steel Wall Pool [Ultimate Windproof & Tear-Resistant Fabric] Snug Fit with Patented Ratchet & Weight Rings Blocks Leaves &Waterproof](https://m.media-amazon.com/images/I/41K6OdsyoJL.jpg)**QH.HOME 18x33 Ft Oval Pool Cover for Steel Wall Pool \[Ultimate Windproof & Tear-Resistant Fabric\] Snug Fit with Patented Ratchet & Weight Rings Blocks Leaves &Waterproof**QH.HOME**$139.42**4.2★1,372 rev](https://www.amazon.com/dp/B0GCKDF41S) [2![QH.HOME 18x33 Ft Oval Pool Cover for Steel Wall Oval Pool [Excellent Windproof ] with Adjustable Buckle Straps & Drawstring Hem. [Durable Tear Resistant]](https://m.media-amazon.com/images/I/31Htld8T9qL.jpg)**QH.HOME 18x33 Ft Oval Pool Cover for Steel Wall Oval Pool \[Excellent Windproof \] with Adjustable Buckle Straps & Drawstring Hem. \[Durable Tear Resistant\]**QH.HOME**$134.39**4.2★179 rev](https://www.amazon.com/dp/B0GCJGRSVJ) [3**QH.HOME 18x33Ft Heavy Duty Winter Oval Pool Cover for Above Steel Wall Pool Super Windproof Ratchet Straps (1 500lb Break Strength)-Effective Installation/Removal Snug Fit Blocks Leaves Sun & Water**QH.HOME**$154.42**4.4★152 rev](https://www.amazon.com/dp/B0GCHZZZKL) [4**Pool Mate 18 x 33 ft Classic Blue Winter Oval Pool Cover for Above Ground Pools 4 ft Overlap (22 x 37 ft Cover Size) Solid 8 x 8 Scrim 2.36 oz/yd2 10-Year Warranty Style: 351833-4PM**Pool Mate**$77.85**4.1★1,053 rev](https://www.amazon.com/dp/B01H8ET2IQ) [5**Winter Block Premium Winter Pool Cover for Above Ground Oval Pool 18 x 33 Ft. Aboveground Pools Winter Cover 8-Year Warranty Includes Winch and Cable Strength & Durability UV Protection**Winter Block**$60.35**3.8★2,073 rev](https://www.amazon.com/dp/B0BJSGYR54)
**~~View all top sellers →~~**
### **Newest**
by launch date
[![QH.HOME 18x33 Ft Oval Pool Cover for Steel Wall Pool [Ultimate Windproof & Tear-Resistant Fabric] Snug Fit with Patented Ratchet & Weight Rings Blocks Leaves &Waterproof](https://m.media-amazon.com/images/I/41K6OdsyoJL.jpg)**QH.HOME 18x33 Ft Oval Pool Cover for Steel Wall Pool \[Ultimate Windproof & Tear-Resistant Fabric\] Snug Fit with Patented Ratchet & Weight Rings Blocks Leaves &Waterproof**QH.HOME**$139.42**1,372 rev7mo ago](https://www.amazon.com/dp/B0GCKDF41S) [![QH.HOME 18x33 Ft Oval Pool Cover for Steel Wall Oval Pool [Excellent Windproof ] with Adjustable Buckle Straps & Drawstring Hem. [Durable Tear Resistant]](https://m.media-amazon.com/images/I/31Htld8T9qL.jpg)**QH.HOME 18x33 Ft Oval Pool Cover for Steel Wall Oval Pool \[Excellent Windproof \] with Adjustable Buckle Straps & Drawstring Hem. \[Durable Tear Resistant\]**QH.HOME**$134.39**179 rev7mo ago](https://www.amazon.com/dp/B0GCJGRSVJ) [**QH.HOME 18x33Ft Heavy Duty Winter Oval Pool Cover for Above Steel Wall Pool Super Windproof Ratchet Straps (1 500lb Break Strength)-Effective Installation/Removal Snug Fit Blocks Leaves Sun & Water**QH.HOME**$154.42**152 rev7mo ago](https://www.amazon.com/dp/B0GCHZZZKL) [![QH.HOME 550D 18x33 FT Oval Pool Cover [Upgraded Tear Resistant & Threefold Windproof] wth Pre-Installed Winch and Rope Pool Covers for Above Ground Pools Oval-Snug Fit & Waterproof Protection](https://m.media-amazon.com/images/I/41PjsG15jfL.jpg)**QH.HOME 550D 18x33 FT Oval Pool Cover \[Upgraded Tear Resistant & Threefold Windproof\] wth Pre-Installed Winch and Rope Pool Covers for Above Ground Pools Oval-Snug Fit & Waterproof Protection**QH.HOME**$144.96**297 rev7mo ago](https://www.amazon.com/dp/B0GCJDG2DH) [**iBirdie Winter Pool Cover fit 18 x 33 19 x 34 Above Ground Oval Pools Fade-Resistant Tear-Resistant Waterproof and Weatherproof for Outdoor Protection Black Fabric 500D**iBirdie**$143.45**84 rev1y ago](https://www.amazon.com/dp/B0DNFNQQ5C)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[![QH.HOME 550D 18x33 FT Oval Pool Cover [Upgraded Tear Resistant & Threefold Windproof] wth Pre-Installed Winch and Rope Pool Covers for Above Ground Pools Oval-Snug Fit & Waterproof Protection](https://m.media-amazon.com/images/I/41PjsG15jfL.jpg)**QH.HOME 550D 18x33 FT Oval Pool Cover \[Upgraded Tear Resistant & Threefold Windproof\] wth Pre-Installed Winch and Rope Pool Covers for Above Ground Pools Oval-Snug Fit & Waterproof Protection**QH.HOME**$144.96**4.4★**▲ 368%**](https://www.amazon.com/dp/B0GCJDG2DH) [![QH.HOME 18x33 Ft Oval Pool Cover for Steel Wall Oval Pool [Excellent Windproof ] with Adjustable Buckle Straps & Drawstring Hem. [Durable Tear Resistant]](https://m.media-amazon.com/images/I/31Htld8T9qL.jpg)**QH.HOME 18x33 Ft Oval Pool Cover for Steel Wall Oval Pool \[Excellent Windproof \] with Adjustable Buckle Straps & Drawstring Hem. \[Durable Tear Resistant\]**QH.HOME**$134.39**4.2★**▲ 351%**](https://www.amazon.com/dp/B0GCJGRSVJ) [![QH.HOME 18x33 Ft Oval Pool Cover for Steel Wall Pool [Ultimate Windproof & Tear-Resistant Fabric] Snug Fit with Patented Ratchet & Weight Rings Blocks Leaves &Waterproof](https://m.media-amazon.com/images/I/41K6OdsyoJL.jpg)**QH.HOME 18x33 Ft Oval Pool Cover for Steel Wall Pool \[Ultimate Windproof & Tear-Resistant Fabric\] Snug Fit with Patented Ratchet & Weight Rings Blocks Leaves &Waterproof**QH.HOME**$139.42**4.2★**▲ 331%**](https://www.amazon.com/dp/B0GCKDF41S) [**QH.HOME 18x33Ft Heavy Duty Winter Oval Pool Cover for Above Steel Wall Pool Super Windproof Ratchet Straps (1 500lb Break Strength)-Effective Installation/Removal Snug Fit Blocks Leaves Sun & Water**QH.HOME**$154.42**4.4★**▲ 302%**](https://www.amazon.com/dp/B0GCHZZZKL) [**Robelle 18 x 33 ft Heavy Duty Silver Winter Oval Pool Cover for Above Ground Pools 4 ft Overlap (22 x 37 ft Cover Size) Solid 8 x 8 Scrim 2.36 oz/yd2 10-Year Warranty Style: 551833-4-ROB**Robelle**$98.68**4.3★**▲ 154%**](https://www.amazon.com/dp/B07FGNS344)
**~~View all trending →~~**
## **What buyers say about 18x33 winter pool cover oval**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Assembly/Installation**17%
*“This was installed correctly”*
**Thickness**17%
*“was a thick cover that I was wanting”*
**Value For Money**17%
*“For the price would buy again”*
**Quality-Overall**17%
*“Good product”*
**Size-Overall**17%
*“Fit just right”*
### **What buyers complain about **
**Quality-Overall**67%
*“Trouble workmanship”*
**Durability**17%
*“still didnt hold up”*
### **Top return reasons **
**Size-Overall**50%
**Weight Heavy**25%
**Defective Material/Parts**17%
**Quality-Overall**17%
**Advertised Vs Actual Product**8%
## **Common questions**
- **Is 18x33 winter pool cover oval profitable to sell on Amazon United States?**
- The niche generates $60K/yr across 12 tracked products. 2 of 4 products launched in the last 360 days are still selling. 90-day search growth is +253.5%. Flapen's verdict: Worth a look (51/100).
- **How competitive is the 18x33 winter pool cover oval niche?**
- 6 brands and 14 sellers compete. The top 5 products take 76% of clicks and top 5 brands hold 97% of demand.
- **What do buyers complain about in 18x33 winter pool cover oval?**
- Top complaints mined from reviews: Quality-Overall, Durability. The return rate is 1.3%.
- **When does demand for 18x33 winter pool cover oval peak?**
- Demand peaks in Aug–Sep–Oct; the busiest month runs 70.4× the quietest.
- **What does it cost to enter the 18x33 winter pool cover oval niche?**
- Listings span $57.77–$154.42; the average listing price is $107.66 (sweet spot $15–$100). The average incumbent carries 614 reviews — the moat a new listing must climb.
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