{"product_id":"sihaian-12x21ft-pool-cover-for-oval-rectangular-above-ground-pools-dual-tension-drainable-uv-resistant","title":"SIHAIAN 12x21ft Pool Cover for Oval \u0026 Rectangular Above-Ground Pools — Dual-Tension, Drainable, UV-Resistant","description":"\u003cp\u003e\u003cstrong\u003eSIHAIAN 12x21Ft pool cover is a heavy-duty, one-piece oval\/rectangular above-ground pool cover with a dual-tension system, drainage outlet, lockable tensioners, and UV-resistant waterproof fabric to protect your pool from waterlogging and debris.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eKeep your above-ground pool clean and structurally protected throughout the season with a cover designed for both oval and rectangular frames. The SIHAIAN 12x21Ft model uses a unique dual tensioning design to conform to non-circular pool shapes without multiple external straps. Its woven polyester with a three-layer PU coating resists UV and rain while built-in drainage and locking slots make maintenance and safety easier.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the dual tensioning system give a tighter fit for oval and rectangular pools?\u003c\/h3\u003e\n\n\u003cp\u003eThe dual tensioning system replaces the need for numerous external ropes by using high-strength nylon webbing integrated into the cover. This creates balanced pull across the surface so the cover more accurately follows the pool’s edges, reducing flapping and sagging in wind.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eHigh-strength nylon webbing integrated into the cover for even tension.\u003c\/li\u003e\n  \u003cli\u003eConforms to both oval and rectangular frames without extra straps.\u003c\/li\u003e\n  \u003cli\u003eFewer installation parts—quicker on\/off and less chance of tangles.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in locking slots secure the tensioners and resist accidental removal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat prevents rainwater from pooling on the cover after storms?\u003c\/h3\u003e\n\n\u003cp\u003eThis cover includes an adjustable center drainage outlet that channels collected water away so you don’t get heavy sagging or standing water on the cover surface. You can attach a standard 1-inch hose or a SIHAIAN drainage kit for simpler runoff after heavy rainfall.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eAdjustable center drainage outlet reduces water accumulation.\u003c\/li\u003e\n  \u003cli\u003eCompatible with 1-inch hoses or optional SIHAIAN drainage kit.\u003c\/li\u003e\n  \u003cli\u003eLess cleaning and lower stress on the cover fabric after storms.\u003c\/li\u003e\n  \u003cli\u003eEncourages even drying to prolong cover life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this cover durable, windproof, and safe for families?\u003c\/h3\u003e\n\n\u003cp\u003eConstructed from yarn-dyed woven polyester plus a three-layer PU coating, the cover offers strong waterproof performance and UV resistance for extended outdoor use. Built-in locking slots on the tensioners improve safety by helping prevent children from removing the cover; a padlock can be used for added security.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePremium woven polyester with 3-layer PU coating for waterproofing and UV protection.\u003c\/li\u003e\n  \u003cli\u003eTested for outdoor durability and water pressure resistance over 10000 Kpa.\u003c\/li\u003e\n  \u003cli\u003eLockable tensioner slots to help deter unintended openings.\u003c\/li\u003e\n  \u003cli\u003eRecommended: choose correct size and follow the included SIHAIAN manual.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I pick the right size and install this 12x21Ft cover?\u003c\/h3\u003e\n\n\u003cp\u003eThe 12x21Ft cover fits most above-ground oval or rectangular metal-frame pools. SIHAIAN includes four side straps for storage and basic installation; additional accessory kits are available for specific wall types or hard surfaces. If your pool dimensions differ, contact SIHAIAN support for installation guidance or accessory recommendations.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCompatible with many oval\/rectangular metal frame above-ground pools.\u003c\/li\u003e\n  \u003cli\u003eIncludes 4 side straps for storage and simple setup.\u003c\/li\u003e\n  \u003cli\u003eAccessory kits available for steel-wall pools or hard surfaces (sold separately).\u003c\/li\u003e\n  \u003cli\u003eCustomer service can advise on sizing and installation tweaks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: homeowners with oval or rectangular above-ground pools seeking a robust, low-maintenance cover that balances weather protection and safety. It’s a good fit if you want a single-piece solution that resists tearing, reduces waterlogging, and provides lockable tensioning without complicated rope systems. Choose SIHAIAN 12x21Ft when you need a durable seasonal cover that simplifies care and improves seasonal pool protection.\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: Will this cover fit my oval above-ground pool?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The 12x21Ft size fits most oval and rectangular metal-frame above-ground pools; measure your pool and contact SIHAIAN for sizing help if unsure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can rainwater be drained without removing the cover?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The cover has an adjustable center drainage outlet compatible with a 1-inch hose or an optional SIHAIAN drainage kit.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SIHAIAN","offers":[{"title":"Default Title","offer_id":56835703570772,"sku":"B0DS2RP1VQ","price":114.31,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/sihaian-front-packaging-cover.jpg?v=1787057826","url":"https:\/\/gardenluxe.co.uk\/products\/sihaian-12x21ft-pool-cover-for-oval-rectangular-above-ground-pools-dual-tension-drainable-uv-resistant","provider":"Gardenluxe Uk","version":"1.0","type":"link"}