Top 10 Best 18 foot round pool cover in 2026

Last Updated - 6/15/2026

🏆Best Choice

Winter Block

Winter Block 18’ ft. Round Pool Winter Cover for Above Ground Pools - 8-Year Warranty, Cold and UV Resistant, Weatherproof and Durable, Winch & Cable Included

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•PREMIUM WINTER POOL COVER – Thicker and more durable than the regular winter pool covers, this cover will keep your aboveground pool in good condition during the cold winter months and make it easier to get the pool back in shape in the spring
•EASY TO INSTALL – This lightweight, yet durable winterizing pool cover is easy to install. It comes with perimeter grommets, steel cable and winch so it’s ready for install right out of the box
•DURABLE CONSTRUCTION - This aboveground pool winter cover is treated for resistance to damaging sunrays. It’s made of premium laminated polyethylene sheeting woven with thick 8x8 scrim, high-density polyethylene stitching for superior tensile strength & durability
•KEEPS OUT DEBRIS – Designed to keep out debris, rainwater and melted snow, you can rest assured that next summer your pool will be ready for another season of family fun! This pool cover up is extremely durable to withstand even the harshest winters
•FITS 18’ ROUND POOL – This Winter Block Winter Pool Cover measures 21’ in diameter to fit a 18’ round pool without any issues

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$24.41

$28.00

-13%

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Shop Square

18 ft Round Pool Cover for Above Ground Pools, Above Ground Pool Cover, Swimming Pool Cover, Winter Pool Cover, Keeps Out Debris, Cold and UV Resistant, Supreme Mesh, Navy Blue

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•Extra Durable Construction: Our above ground pool covers are made of supreme mesh material with an industry-leading polyethylene scrim and coating, ensuring exceptional strength and resilience. Built to withstand harsh winter conditions, they provide unparalleled durability for reliable protection throughout the season.
•Ultimate Winter Protection: Experience the best winter pool cover that shields your pool from precipitation, debris, and even heavy snowfall. With its robust construction, this cover is engineered to endure extreme cold as low as −10° F (−25° C), ensuring your pool remains immaculate and ready for use when the weather warms up.
•Year-Round Sun and UV Protection: Our pool cover is designed to provide exceptional protection against sunlight and harmful UV rays, not just during the summer but also throughout the winter months. The cover also features heat sealed seams.
•Effortless Installation: Includes clear and comprehensive installation instructions, making the process quick and easy. Additionally, we provide a heavy-duty, vinyl-coated cable and tightening winch, secured by rip-proof metal grommets spaced 30 inches apart, ensuring a secure and snug fit for optimal protection of your pool.
•Ideal Fit: Custom-made to perfectly cover 18 ft round above ground pools with a 3-foot overlap, providing full protection and coverage.

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$35.99

$39.99

-10%

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UIRWAY

UIRWAY 18 Ft Round Winter Pool Cover with Reflective Strips, Swimming Pool Cover for Above Ground Pools, Solar Cover Including Rope Tie and Luminous Ground Nails, PU Tarp Snug Fit for UV Protected

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•【Durable Protection】Round pool cover is made of 420D painted silver material and equipped with 8 windproof ropes and ground nails. It provides reliable protection against debris, leaves, and harsh weather elements, extending the life of your pool.No standing water goes through the cover to keep your water fresh, It's a money saver!
•【Exclusive Patent】The middle part of the pool cover is surrounded by 2 webbings, and the bottom is equipped with a full circle of drawstrings. Most sellers use steel wire ropes for tightening, but our full circle of webbing is more convenient and will not tear due to strong pulling. The buckle and drawstring are tightened at the same position, which is more convenient to operate.
•【User-Friendly Design】The swimming pool cover has 2 handles that can be used for drying and hanging after cleaning which most sellers don’t have. The design of the reflective strips and luminous ground nails makes it easy to identify the pool's position at night or when the light is low and avoid stumbling.
•【Secure Fit & Tipes】The distance to the edge of the pool cover is 18 inches, which is longer than most sellers, and the chance of being blown up by the wind is smaller. Other covers are about 7-11 inches. It is recommended to put UIRWAY Brand Pool Pillows in the pool to prevent water from sinking.
•【Versatile】The solar cover has universal compatibility for trampolines, round swimming pools, appropriate stock tank pools, round hot tubs, pet pools, and other round outdoor furniture.

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$66.48

$79.99

-17%

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Blue Wave

Blue Wave Bronze 8-Year 18 ft Round Above Ground Pool Cover for Winter– Durable & Weather-Resistant Polyethylene – 4 ft Overlap, Black Underside, Reinforced Grommets, Winch, Cable – Navy Blue

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•8-YEAR ROUND WINTER POOL COVER – Designed for round above-ground pools, this round pool cover provides reliable, season-long protection. Durable polyethylene construction offers strength and a solid barrier against winter elements.
•PROTECTS POOL FROM SUN, SNOW & DEBRIS – The solid design of this swimming pool cover keeps out leaves, dirt, and other debris, while the black underside reduces algae growth by limiting sunlight exposure. Perfect for maintaining pool cleanliness.
•DURABLE MATERIALS & HEAT-SEALED SEAMS – Woven with a 7x7 scrim count and finished with heat-sealed seams, this winter cover for above ground pool resists tearing, sun damage, and winter weather, helping extend its lifespan over multiple seasons.
•4-FT OVERLAP FOR A SECURE FIT – The overlap design allows the pool winter cover to be securely fastened while minimizing stretching. Metal grommets are placed every 2 feet for balanced tension with a cable and locking winch to keep the cover in place.
•MULTIPLE SIZES AVAILABLE, WARRANTY INCLUDED – Available for pool sizes ranging from 12-ft to 30-ft. Finished in dark navy blue and backed by an 8-year limited warranty for peace of mind.

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$34.57

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QH.HOME

QH.HOME Winter Round Pool Cover for 18 Ft Bestway/Intex/Coleman Frame Above Ground Pool, [Excellent Windproof ] with Fast Tightening Patented Ratchet& Weight-Bearing Rings,Cold and UV Resistant

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•【Pay attention to choose the right size】QH.HOME 18ft pool cover is designed for 18ft metal frame pool by default, if you have an 18ft steel wall pool please choose 21ft metal frame pool (the reason is that the width of the outer edge of the steel wall round pool is increased by 6-10 inches, and the required size is larger, please refer to the size comparison chart)
•【Exclusive Patented Triple Windproof Design】 double insurance reinforcement of ratchet rope system + segmented drawstring, adjustable tension segment by segment, fits perfectly to the curvature of round pool edges, and with the pool cover edge load-bearing hanging loop (for hanging sandbags/heavy objects), it can withstand strong winds of more than 100 miles per hour.
•【Upgraded Tear Resistant Design】The edges of our round pool cover are designed with a lay-flat seamless design (no risk of edge cracking compared to traditional double stitching). Upgraded 500D Oxford fabric has a tear strength of 330 lbs (lab test), which increases the durability by 3 times, far more than 420D/210D fabrics, ensuring the pool cover is stable for long-term use.
•【Always Keep Pool Water Clean】 This pool cover is made of upgraded 500D high quality waterproof material, with waterproof sealing strips on all the top seams, which effectively blocks rainwater from seeping in and pool water from overflowing, keeps dirt and leaves away from the water, makes the pool water cleaner, reduces the number of times you need to clean and the use of chemicals, lowers the cost of maintenance, and saves you money and effort.
•【UV Protection&Insulation】 PU-coated 500D fabric blocks 99% of UV rays (UPF50+ certified), protecting the pool water and cover from sun damage and preventing algae growth. Black fabric absorbs heat to raise water temperature by 8-12 degrees Fahrenheit during the day while reducing nighttime heat loss by 95% - dual-mode climate control that outperforms silver-coated pool covers.
•【Safer & Eco-Friendly Material】Our pool cover is certified by Amazon “Climate Friendly”, made of odorless and environmentally friendly PU transparent material, which is safe to use even in hot environments, won't melt or leave black residue, and is safer and more environmentally friendly than silver coated material. Let you and your family enjoy the whole summer.

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$79.99

$84.79

-6%

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UIRWAY

UIRWAY 500D Winter Pool Cover 18FT Round [2025 Upgraded Heavy Duty Fabric] Solar Pool Covers for Above Ground Pools, New Super Windproof Gel-Coated Tarp Straps, Swimming Pool Covers with UV Protection

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•【2025 New Upgraded Fabric】UIRWAY pool cover 18ft round is crafted from high-density 500D material, tested to achieve a tear strength of 780N-strong enough to withstand the pulling force of a weightlifting champion! Reinforced double stitching and waterproof adhesive strips ensure secure seams, providing long-lasting, durable protection for your pool.
•【Triple Windproof Design】The solar pool cover features new gel-coated anti-slip straps, ensuring stability in harsh weather without the need for additional weights. Unlike the common steel-wire designs, our straps are softer, preventing wear and tear, and making the pool cover more resistant to damage. Dual drawstrings at the bottom and adjustable straps on both sides provide a tight, secure fit and all-around protection, easily withstanding hurricane-force winds.
•【UPF50+ Protection】The pool covers for above ground pools effectively block 99.9% of harmful UV rays, preventing pool discoloration. It also reduces pool water evaporation by 90% and slows chlorine evaporation by 70%-90%, helping maintain water levels and keeping the water clear. This minimizes water wastage, saving time, money, and effort.
•【Unique Thoughtful Design】 Featuring multiple reflective strips, our round pool cover enhances nighttime visibility, reducing the risk of collisions and drowning. Side handles allow for easy storage and drying. With an increased height of 18 inches, the cover provides superior protection against dust, leaves, and sun exposure, helping to prevent brittleness and extend your pool’s lifespan.
•【One-Person Easy Setup】Simply secure the two poles with the anti-slip gel-coated straps to prevent slipping, then drape the cover over the pool. For added stability, place an inflatable object in the center. The swimming pool cover is compatible with various circular pool types, including trampolines, swimming pools, hot tubs, pet pools, and other round outdoor furniture—fully meeting your needs!

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$79.99

$99.99

-20%

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Safana

SAFANA 18FT Pool Covers for Above Ground Pools, Round Swimming Pool Cover [Upgrade 420D Thicker] Protective Leaf Cover with Reflective Strip, Tear Resistant Durability Fabric, UV Resistance, Black

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•【Upgraded 420D Durable Material】The latest 420D high-quality Oxford cloth is super tear-resistant and perfectly withstands severe weather conditions such as strong wind and heavy rain. Prevent leaves, dust, debris, etc. from entering the above ground pool, enjoy clean pool water for a long time. The back is coated with PU silver, which has super waterproof and UV protection performance, not easy to age. It can also protect the pool components well and extend the service life.
•【Full Windproof Accessory Set】To enhance the windproof effect, we have developed a set of parts: 1. Widened Rubber Band Seal. It can shrink seal automatically, very convenient to install and disassemble, just pull it open and put it on. 2. Hook and Loop Fastener Set. One side is adhesive backing, attached to the column. The other side is nylon straps, fix the cover to the column. 3. Elastic Support Rope. Put it on the diagonal, support the pool cover not to collapse or stick to water surface.
•【Easy Installation】No professional skills required, Just put the round pool cover on the swimming pool, fix the ropes properly, installation and removal become effortless tasks, you can easily take it off the swimming pool for cleaning or replacing the water, saving time and effort.
•【Energy Conservation and Insulation】The silver-coated thickened material has excellent heat preservation performance, effectively reduces water evaporation, saves energy costs, environmentally friendly and economical solution for swimming pool.
•【Wide Application】Compatible with frame swimming pools and hard-wall pools. Please measure the maximum outer diameter of the swimming pool before order to choose correct size. Especially for hard-wall pools, which have a wider outer edge, please include the wide edge when measuring; or you can also choose a larger one. Also can be used for hot tubs, stock tank pool, round trampolines, etc.

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$47.92

$56.99

-16%

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Swimline

Swimline 18 Foot Round Heavy Duty Laminated Polyethylene Winter Protection Pool Cover for Above Ground Outdoor Swimming Pools, Blue

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Provides all-weather protection for your 18-foot-round above-ground pool, shielding it from harsh weather and environmental elements and extending its lifespan
•Made of laminated polyethylene sheeting woven with thick, high-density polyethylene stitching, which ensures superior tensile strength and durability
•Crafted to withstand high puncture and tear resistance, even in the presence of chlorine and other chemical stains, guaranteeing lasting durability
•Complete package includes metallic grommets, cable, and ratchets for straightforward installation, securing your pool's safety throughout the winter season
•Maximum UV resistance built into the cover's material ensures it remains in top condition; Fits 18-foot round pools with a 3-foot overlap (cover size is about 3 feet larger than your pool)

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$38.99

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Tufmunb

18 ft Round Winter Pool Cover for Metal Frame Above Ground Pools, Pool Cover for Winter- Upgraded Windproof Design Compatible with Intex/Bestway Frame Above Ground Outdoor Swimming Pool (Black)

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Note: Our pool cover is specially designed for pools with frame. Not suitable for inflatable swimming pool, hot tub, pet pool or other round outdoor furniture.
•2025 Upgraded Pool Covers for Above Ground Pools - We have added ties and Velcro strap to help secure your cover in place, which can holds up to strong winds. In addition, we have added elastic hooks to prevent cover from sinking into the pool during rainy days
•Protect Your Pool- Our durable winterizing pool cover is great for keeping your above ground pool in good condition during the cold winter months and makes it easier for you to get the pool back in shape in the spring
•Durable Material - Made of 420D oxford fabric with silver coating, our pool cover is sturdy and it has continuous coverage of the pool even through rain & wind storms. It fits very snugly and can keep all the debris out
•Package Includes - 1*18ft pool cover, 3*bungee cords, 18*ties, 18*velcro strap.

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$68.99

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In The Swim

SuperGuard SPAGWC18

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Cover size: 21 feet diameter Round
•Blue solid cover, keeps debris and water out
•Includes Steel cable and winch
•1 year full , 8 year pro-rated
•Cover dimensions: 21 feet in diameter, to fit Round pools measuring: 18 feet in diameter

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$29.08

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