21 Ft Solar Pool Cover Round
MaybeSearch demand grew +533.9% this quarter. But prices span $75.03–$253.48, mostly outside the sweet spot, so 21 Ft Solar Pool Cover Round is a Maybe.
- Flapen Score
- 59 / 100Top 36% of 8,839 Patio, Lawn & Garden niches · +3 vs the category median of 5659
- Market size
- $120K/yr13K searches / yr
- 90-day growth
- +533.9%search demand this quarter
- Competition
- 66%top-5 click share · 11 brands · 17 sellers
Flapen Score
21 Ft Solar Pool Cover Round against its category
The dotted line is the Patio, Lawn & Garden average. Past it, 21 Ft Solar Pool Cover Round is stronger. Inside it, weaker.
Market
The 21 Ft Solar Pool Cover Round market on Amazon at a glance
Shoppers on Amazon United States searched for 21 Ft Solar Pool Cover Round 13K times last year and spent an estimated $120K. The top 5 brands take 85% of clicks. Demand peaks in May–Jun–Jul. Flapen scores it 59 out of 100, a Maybe.
01 · Demand
An estimated 7.7% of those searches ended in a purchase.
Shoppers searched for this 13K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 7.7% of those searches ended in a purchase. Searches in the last 90 days moved +533.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $120K a year.
- Searches, last 12 months
- 13K
- Growth, 90 days vs prior 90
- +533.9%
- Conversion, latest week
- 7.7%
- Market size, estimated
- $120Ka year
- Peak month
- June51.4× the quietest month
- Top search term
- 21 foot round solar pool cover6K searches a year
02 · Price
A sale here is worth $116.97.
Listings sell for $116.97 on average, from $75.03 to $253.48. Amazon reports units sold in ranges. This niche sold 750 to 1K a year. The average listing sells 0 to 100 of them. At $116.97 that is $0 to $12K a year per listing.
- Average price
- $116.97above the $15 to $100 sweet spot
- Price range
- $75.03–$253.48
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 750–1K
- Units per listing a year
- 0–100
- Revenue per listing a year
- $0–$12K
- Returns
- 0.2%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is ads.
94% of listings pay for placement with sponsored ads. 50% ship with Prime. On an average day, 5.1% of listings are out of stock. The average listing ranks #244 within Parts & Accessories. It carries 1,132 reviews at 4.33 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 94%
- Prime listings
- 50%
- Out of stock, average day
- 5.1%
- Average rank
- #244in Parts & Accessories
- Average rating
- 4.33 starsAmazon United States average 4.42 stars
- Average reviews
- 1,132per listing
- Listings tracked
- 18
04 · Newcomers
4 of last year's 5 launches cleared the first-year sales bar.
5 products launched here in the last 12 months. 4 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 47 months on average, so the names here are settling in.
- Launched, last 12 months
- 5
- Successful launches
- 4Amazon's first-year sales bar
- Average brand age
- 47 months
Products
Top 21 Ft Solar Pool Cover Round products & what they sell for
The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.
Prices and ratings read from Amazon on Jul 24, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share
In The Swim 21 Standard Blue Round Solar Pool Cover 8 Mil for Solar Heating Above Ground Pools and Inground Pools
- Price
- $78.62
- Rating
- 4.2/5
- Reviews
- 875
- Age
- 5y ago

Sun2Solar Blue 21 ft Round Pool Solar Cover | 12 Mil | Heat Retaining Blanket for Inground & Above Ground Swimming Pools | Suns Energy Heats Pool | Bubble Heating Blankets | 1200 Series
- Price
- $119.49
- Rating
- 4.3/5
- Reviews
- 4,517
- Age
- 6y ago

Dohenys Clear-Tek Micro Bubble Solar Pool Cover for Above Ground Swimming Pools | Increase Solar Energy Absorption Retain Heat Reduce Evaporation Reduce Heat Loss & Save 21 ft Round Blue 1600
- Price
- $93.98
- Rating
- 4.3/5
- Reviews
- 1,417
- Age
- 6y ago

21 Foot Round Solar Cover for Inground and Above Ground Pools 12 Mil - Premium Heavy Duty Solar Blanket for Above Ground Pool Blue - Made in USA
- Price
- $118.40
- Rating
- 4.6/5
- Reviews
- 115
- Age
- 1y ago

Blue Wave 21-ft Round Solar Pool Cover 8-Mil Blue Solar Cover for Above Ground Pool Thermal Bubble Blanket for Heat Retention & Reduced Evaporation
- Price
- $115.53
- Rating
- 4.3/5
- Reviews
- 791
- Age
- 16y ago
Trending
estimated 90-day click momentum
Blue Wave 21-ft Round Solar Pool Cover 8-Mil Blue Solar Cover for Above Ground Pool Thermal Bubble Blanket for Heat Retention & Reduced Evaporation
- Price
- $97.72
- Rating
- 4.2/5
- Reviews
- 33
- Age
- 3mo ago

21 ft Round Pool Covers for Above Ground Pools Thicker Solar Pool Cover Protector - Heavy Duty Tear Resistant Fabric with Ropes and Ground Nails Waterproof Dustproof Windproof (Black)
- Price
- $75.03
- Rating
- 4.4/5
- Reviews
- 16
- Age
- 6mo ago

VINGLI 12Mil Solar Pool Cover Rectangle Solar Blanket-Heavy Duty Solar Pool Cover for Above Ground Pool-Pool Solar Cover for Inground Pool (Blue 21 Round)
- Price
- $121.97
- Rating
- 4.5/5
- Reviews
- 733
- Age
- 4mo ago

Dohenys Clear-Tek Micro Bubble Solar Pool Cover for Above Ground Swimming Pools | Increase Solar Energy Absorption Retain Heat Reduce Evaporation Reduce Heat Loss & Save 21 ft Round Blue 1600
- Price
- $93.98
- Rating
- 4.3/5
- Reviews
- 1,417
- Age
- 6y ago

BigXwell 21ft Round Solar Pool Cover 16 Mil Heavy-Duty Solar Blanket for Above Ground Pools - Reduces Evaporation Retains Heat Blocks Debris Blue Bubble
- Price
- $253.48
- Rating
- 4.5/5
- Reviews
- 8
- Age
- 7mo ago
Newest
by launch date
Blue Wave 21-ft Round Solar Pool Cover 8-Mil Blue Solar Cover for Above Ground Pool Thermal Bubble Blanket for Heat Retention & Reduced Evaporation
- Price
- $97.72
- Rating
- 4.2/5
- Reviews
- 33
- Age
- 3mo ago

VINGLI 12Mil Solar Pool Cover Rectangle Solar Blanket-Heavy Duty Solar Pool Cover for Above Ground Pool-Pool Solar Cover for Inground Pool (Blue 21 Round)
- Price
- $121.97
- Rating
- 4.5/5
- Reviews
- 733
- Age
- 4mo ago

Avolend 21 Ft Round Pool Cover Heavy Duty 500D Solar Cover for Above Ground Pool Excellent Windproof with Reflective Handles & Luminous Ground Nails Cold and UV Resistant
- Price
- $92.33
- Rating
- 4.1/5
- Reviews
- 48
- Age
- 5mo ago

21 ft Round Pool Covers for Above Ground Pools Thicker Solar Pool Cover Protector - Heavy Duty Tear Resistant Fabric with Ropes and Ground Nails Waterproof Dustproof Windproof (Black)
- Price
- $75.03
- Rating
- 4.4/5
- Reviews
- 16
- Age
- 6mo ago

BigXwell 21ft Round Solar Pool Cover 16 Mil Heavy-Duty Solar Blanket for Above Ground Pools - Reduces Evaporation Retains Heat Blocks Debris Blue Bubble
- Price
- $253.48
- Rating
- 4.5/5
- Reviews
- 8
- Age
- 7mo ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 66% of clicks. Leaders hold, but buyers still shop past them.
Brands
11 falling
Sellers
17
Est. top-5 brand share
85%
Top 20: 100%
Est. top-5 click share
66%
Top 20: 100%
Open market
11%
- In The Swim38%
- Sun2Solar19%
- Blue Wave11%
- Doheny's10%
- Shop Square8%
- Yankee Pool Pillow4%
- Open — no brand owns it (5 brands, 11%)
Demand
21 Ft Solar Pool Cover Round search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: May, Jun, Jul · busiest ÷ quietest = 51.4×
Search terms
Top 21 Ft Solar Pool Cover Round search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- 21 foot round solar pool cover6K/yr
- 21 round solar pool cover4K/yr
- 21 ft solar pool cover round4K/yr
Reviews and returns
What reviews say buyers love and hate about 21 Ft Solar Pool Cover Round
We read the reviews and the return reasons for every product selling here.
“this one is thicker than others The first one to have a two year full coverage warranty”
Every topic
Every topic buyers talk about, one row each.
Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.
19 topics
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common 21 Ft Solar Pool Cover Round questions
Answered from the same tracked data.
Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data









