When you purchase from AquaDoc, you're guaranteed to receive an authentic GPC Winter Covers item. Order with confidence, knowing you'll receive top quality pool equipment.
Winter-proof your pool with this durable, cold-resistant 21' round cover for 18' pools.
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Product Details
Protect your pool through the harshest winters with the 21' Green/Black Unbound Round AG Winter Cover.
Designed for 18' round above-ground pools, this durable cover shields against snow, ice, and debris.
Its cold-weather-resistant materials ensure long-lasting performance. The cover features a secure fit, covering the entire pool area to prevent water contamination.
Its strong construction reduces wear and tear, maintaining its effectiveness for years. The dual-color green and black design minimizes algae growth while adding a sleek look.
AI Review Summary ✨
⭐⭐⭐⭐⭐
Customers love the cover’s durable construction and its ability to withstand extreme winter conditions.
Many users appreciate the secure fit, keeping debris, snow, and ice out of the pool.
The green/black design not only looks great but also helps reduce algae buildup.
With a 12-year warranty, buyers feel confident in its long-lasting performance and value for money.
Features
Designed for 18' round above-ground pools – Full coverage for optimal protection
Cold-weather-resistant material – Withstands harsh winter conditions
Secure, snug fit – Prevents debris, snow, and ice from entering the pool
Long-lasting durability – Engineered for years of reliable use
12-year warranty – Peace of mind with extended protection
Specifications
Size: 21' cover for 18' round pools
Material: Cold-weather-resistant fabric
Color: Green (top) / Black (bottom)
Warranty: 12 years
Frequently Asked Questions
Q: How does this cover stay secure during high winds?
The cover is designed with a snug fit, ensuring it stays in place even in strong winds. For added security, consider using cover clips or a cable and winch set.
Q: Will this cover prevent algae growth?
Yes, the black underside helps block sunlight, reducing algae growth throughout the winter months.
Q: Is this cover easy to install and remove?
Absolutely! It’s lightweight yet strong, making installation and removal simple with minimal effort.
Say goodbye to guesswork with our easy-to-use tester that provides fast and accurate readingsfor: Total Chlorine, Total Hardness, Free Chlorine, Cyanuric Acid, Total Alkalinity, Bromine, and pH Levels.
GPC specializes in durable above-ground and in-ground winter pool covers designed to protect your pool during the off-season. Built for strength and reliability, GPC covers help prevent debris buildup, reduce algae growth, and make spring pool openings easier. At AquaDoc, we offer a selection of GPC winter pool covers to help safeguard your pool all winter long.
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