{"product_id":"yankee-pool-pillow-emerald-series-above-ground-pool-cover-21-ft-round-9-mil-ldpe-steel-core-cable","title":"Yankee Pool Pillow Emerald Series Above Ground Pool Cover — 21 ft Round, 9 mil LDPE, Steel-Core Cable","description":"\u003cp\u003e\u003cstrong\u003eYankee Emerald Series 21 ft Round pool cover is a 9 mil, medium-thick LDPE-coated winter cover that protects above ground pools from UV, debris, and seasonal extremes while securing tightly with a steel-core cable and rust-resistant grommets.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eProtecting an above ground pool through winter starts with a cover that balances toughness and fit. The Yankee Emerald Series round 21 ft cover uses a dense 10x10 scrim and reinforced seam sealing to resist punctures and stretching, while its LDPE coating and black underside reduce UV damage and water blooms. Built to tolerate both freezing cold and high heat, this cover is designed for reliable off-season protection and easier spring reopening.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this cover keep my pool cleaner over winter?\u003c\/h3\u003e\n\u003cp\u003eThe Emerald Series blocks sunlight and physical debris to limit algae growth and cut down spring clean-up time. A black underside helps prevent photosynthesis in trapped water, and the LDPE surface sheds leaves and dirt so most debris can be removed without harsh scrubbing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLDPE-coated fabric resists water absorption and repels debris.\u003c\/li\u003e\n  \u003cli\u003eBlack underside reduces sunlight penetration to prevent water blooms.\u003c\/li\u003e\n  \u003cli\u003eDense 10x10 scrim increases tear resistance from sticks and branches.\u003c\/li\u003e\n  \u003cli\u003eReinforced seam sealing prevents small rips from widening over winter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this cover survive wind, ice, and temperature swings?\u003c\/h3\u003e\n\u003cp\u003eYes — the material and hardware are chosen for seasonal volatility. The cover stays flexible and intact down to −10° F (−25° C) and withstands heat up to 180° F (80° C), while a steel-core cable and rust-resistant grommets provide a secure hold in windy or icy conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCold-tested to −10° F and heat-resilient to 180° F for seasonal durability.\u003c\/li\u003e\n  \u003cli\u003eSteel-core cable anchors the cover tightly around the pool perimeter.\u003c\/li\u003e\n  \u003cli\u003eRust-resistant metal grommets resist corrosion and maintain fit.\u003c\/li\u003e\n  \u003cli\u003ePrecision-molded winch allows controlled tightening and long-term tension.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is installation and storage for a 21 ft round cover?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: spread the cover, thread the steel-core cable through grommets, then tighten with the included winch. When spring arrives, rinse, dry, fold, and store in a cool, dry place; the medium-thick 9 mil material balances manageable weight with robust protection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePre-installed grommets spaced for even tension and easy threading.\u003c\/li\u003e\n  \u003cli\u003ePrecision-molded winch simplifies tightening without specialized tools.\u003c\/li\u003e\n  \u003cli\u003e9 mil thickness keeps the cover light enough to handle with two people.\u003c\/li\u003e\n  \u003cli\u003eFoldable LDPE-coated fabric stores compactly when dry and clean.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat makes the Emerald Series different from basic tarps?\u003c\/h3\u003e\n\u003cp\u003eUnlike generic tarps, the Yankee Emerald Series is purpose-built for above ground pools, featuring pool-specific materials and fittings. The combined 10x10 scrim, reinforced seams, and corrosion-resistant fittings deliver season-long performance rather than short-term coverage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePool-grade 10x10 scrim versus typical thin tarp weave.\u003c\/li\u003e\n  \u003cli\u003eReinforced seam sealing designed to withstand tension and weathering.\u003c\/li\u003e\n  \u003cli\u003eHardware (steel-core cable, rust-proof grommets, winch) engineered for outdoor pool use.\u003c\/li\u003e\n  \u003cli\u003eBlack underside and LDPE coating specifically target algae and UV issues.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Yankee Emerald Series 21 ft round cover is aimed at above ground pool owners who want dependable off-season protection without professional installation. It fits families and seasonal homeowners who value durability, easier spring maintenance, and hardware that resists corrosion in coastal or wet climates. If you need a medium-thick, well-fitted cover with winter-ready specs and simple installation, this model is a practical choice.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this cover compatible with all 21 ft above ground pools?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — designed for 21 ft round above ground pools; ensure your pool is a true round 21 ft for best fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the cover be used year-round in hot climates?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — heat-resilient to 180° F (80° C), it tolerates high temperatures, though periodic inspection is recommended.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Yankee Pool Pillow","offers":[{"title":"Default Title","offer_id":56839652049236,"sku":"B0DM8V1LVM","price":166.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/yankee-emerald-21ft-front-view.jpg?v=1787068084","url":"https:\/\/gardenluxe.co.uk\/products\/yankee-pool-pillow-emerald-series-above-ground-pool-cover-21-ft-round-9-mil-ldpe-steel-core-cable","provider":"Gardenluxe Uk","version":"1.0","type":"link"}