pool liners 18ft round above ground
Worth a lookShows low returns (0.9%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Returns
Incredible0.9%return rate — above 5% kills the launch gate
Growth
Great+105.7%90-day search growth — must beat 0% to launch
Review moat
Great498avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.3★avg incumbent rating — lower means beatable quality
Competition
Good49%top-5 click share — leaders hold, buyers still browse
Market size
Good$289K$289K/yr · 84K searches
Avg price
Okay$222.96avg listing price — sweet spot $15–$100
Brand share
Okay86%top-5 brand share — brands hold most of the demand
Conversion
Bad1.5%search→purchase rate — share of searches ending in a sale
Price range
Bad$39.79–$950.88cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United States niche tracking, pool liners 18ft round above ground is a $289K/yr Amazon United States market (84K searches/yr). The top 5 brands hold 86% of demand. Demand peaks in Apr–May–Jun–Jul. Verdict: Worth a look — 58/100.
Data updated Jul 24, 2026 · scored weekly · How we score niches
pool liners 18ft round above ground market data
- Units sold / yr
- 1K–1K
- avg 0–100/product
- Revenue / yr
- $223K–$279K
- units × avg price
- Conversion rate
- 1.5%
- Avg BSR
- #410
- Page quality
- 0%
- Prime
- 39%
- Sponsored
- 94%
- Out of stock
- 13.3%
- Avg brand age
- 39 months
- Avg seller age
- 183 days
Competition & brand share
The top 5 products take 49% of clicks — established leaders, but buyers still shop beyond them.Brands
14 falling
Sellers
31
Top-5 brand share
86%
Top 20: 100%
Top-5 click share
49%
Top 20: 89%
Open market
10%
- Smartline19%
- Blue Wave19%
- VEVOR17%
- Swimline17%
- Shop Square15%
- Generic3%
- Open — no brand owns it (8 brands, 10%)
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +105.7% search growth over the last 90 days.Peak months: Apr, May, Jun, Jul · busiest ÷ quietest = 26.0×
Top pool liners 18ft round above ground search terms
- intex pool liner replacement 18x528K/yr
- pool liner 18 ft round above ground12K/yr
- 18 round pool liner7K/yr
- 18 ft round pool liner7K/yr
- 18ft pool liner6K/yr
- 18 ft pool liner6K/yr
- bestway 18 x 48 pool liner5K/yr
- 18 foot pool liner5K/yr
- 18 pool liner6K/yr
- 18ft round pool liner4K/yr
Top pool liners 18ft round above ground 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.
All 24 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Swimline 18 Foot Round Durable 20 Gauge Vinyl Wall Overlap Pool Liner Cover for 48 and 52 Inch Above Ground Swimming Pools Blue
Swimline$174.354.4★972 rev
Blue Wave Evening Bay 18-ft Round Overlap Pool Liner for Above-Ground Steel Wall Pools Weather-Resistant Standard-Gauge Vinyl with Welded Seams for 48/54-In Depth Walls - Dark Blue
Blue Wave$218.444.0★194 rev
VEVOR 18-ft Round Above Ground Pool Liner Overlap Pool Liners Standard Gauge Vinyl 48-to-54inch Wall Height Designed for Steel Sided Above-Ground Swimming Pools
VEVOR$162.344.3★231 rev
VEVOR 18-ft Round Above Ground Pool Liner Overlap Pool Liners Thickend Upgraded Gauge Vinyl 48-to-54inch Wall Height Designed for Steel Sided Above-Ground Swimming Pools
VEVOR$206.814.3★231 rev
18 Foot Round Pool Liner for 48 and 52 Inch Above Ground Swimming Pools - Overlap Pool Liner Replacement Long Lasting Standard Gauge Easy Installation Blue Pebble
Shop Square$150.134.4★24 rev
Newest
by launch date
Replacement Pool Liner for Bestway Power Steel and Pro Max 18ft x 48in Above Ground Round Swimming Pool Gray Liner Fits Only 2022+ Models
Generic$309.901 rev
Replacement Pool Liner for Coleman Power Steel 18ft x 48in Above Ground Swimming Pool Brown Metal Frame Liner Fits Only 2022+ Models
Generic$354.202 rev
Pangda Unibead 18ft Round Pool Liner for Above Ground Steel Wall Pools Above Ground Pool Liners 47 Inch Wall Height Solid Blue Durable Vinyl Replacement Durable Vinyl Replacement Swimming Liner
Pangda$156.433 rev
VEVOR 18-ft Round Above Ground Pool Liner Overlap Pool Liners Thickend Upgraded Gauge Vinyl 48-to-54inch Wall Height Designed for Steel Sided Above-Ground Swimming Pools
VEVOR$206.81231 rev
AquaJoyer 18 Round Thicker Heavy Duty Pool Liner Pad for Above Ground Pool Pool Padding Underlayment for Pool Bottom Protects Pool Prevents Punctures Weed Barrier Comfortable underfoot
AquaJoyer$60.44116 rev
Trending
90-day click momentumReplacement Pool Liner for Coleman Power Steel 18ft x 48in Above Ground Swimming Pool Brown Metal Frame Liner Fits Only 2022+ Models
Generic$354.205.0★
Pangda Unibead 18ft Round Pool Liner for Above Ground Steel Wall Pools Above Ground Pool Liners 47 Inch Wall Height Solid Blue Durable Vinyl Replacement Durable Vinyl Replacement Swimming Liner
Pangda$156.434.6★
Replacement Pool Liner for Bestway Power Steel and Pro Max 18ft x 48in Above Ground Round Swimming Pool Gray Liner Fits Only 2022+ Models
Generic$309.905.0★
18 Foot Round Pool Liner for 48 and 52 Inch Above Ground Swimming Pools - Overlap Pool Liner Replacement Long Lasting Standard Gauge Easy Installation Blue Pebble
Shop Square$150.134.4★
Smartline 18 ft Round Swimming Pool Liner | Boulder Swirl | Unibead Style | 52 Inch Wall Height | 20 Gauge Heavy Duty Virgin Vinyl | Designed for Steel Sided Above Ground Pools
Smartline$296.294.3★
What buyers say about pool liners 18ft round above ground
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to install”
“Fit perfect”
“very satisfied with this pool”
“Very durable”
“Very nice thick quality”
“good price”
“Held up for 2 years now thick material very durable”
“Solid”
“Definitely helped the bottom of the pool feel softer than prior yeara”
“Easy to put on and take off”
What buyers complain about
“they never last more than a year”
“Not much thickness to it”
“leaked like crazy”
“Feels like a very poor quality pool”
“Not worth it”
“Dont fit in 18 feet pool”
“Felt not padding”
“It's OK thinner than expected”
“it is not puncture proof”
“The description and most of the reviews are pure deception and lies”
Top return reasons
Common questions
- Is pool liners 18ft round above ground profitable to sell on Amazon United States?
- The niche generates $289K/yr across 31 tracked products. 5 of 6 products launched in the last 360 days are still selling. 90-day search growth is +105.7%. Flapen's verdict: Worth a look (58/100).
- How competitive is the pool liners 18ft round above ground niche?
- 14 brands and 31 sellers compete. The top 5 products take 49% of clicks and top 5 brands hold 86% of demand.
- What do buyers complain about in pool liners 18ft round above ground?
- Top complaints mined from reviews: Durability, Thickness, Leak-Proof. The return rate is 0.9%.
- When does demand for pool liners 18ft round above ground peak?
- Demand peaks in Apr–May–Jun–Jul; the busiest month runs 26.0× the quietest.
- What does it cost to enter the pool liners 18ft round above ground niche?
- Listings span $39.79–$950.88; the average listing price is $222.96 (sweet spot $15–$100). The average incumbent carries 498 reviews — the moat a new listing must climb.