{"product_id":"crystal-3who440610-crystal-upvc-window-white-a-rated-top-o-ds250767-000162","title":"Crystal uPVC Window | Top Opener | White | 440mm X 610mm | Obscure Glazing","description":"\u003c!-- Crystal UPVC Window | Top Opener | White | 440mm X 610mm | Obscure Glazing --\u003e\n\n\u003cp\u003e\u003cstrong\u003eCrystal UPVC Window | Top Opener | White | 440mm X 610mm | Obscure Glazing\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eUpgrade your home with the Crystal UPVC Window, a premium A Rated top opener designed for British homes seeking energy efficiency, privacy, and modern style. This white uPVC window, measuring 440mm x 610mm, is the perfect solution for bathrooms, utility rooms, or any space where privacy and insulation are a priority. With its double-glazed, obscure Pilkington Stipolytte glass, you can enjoy natural light while maintaining complete privacy, making it ideal for both new builds and renovations across the UK.\u003c\/p\u003e\n\n\u003cp\u003eEngineered for superior performance, this Crystal window features a high-efficiency 28mm Low E glazing unit filled with argon gas and a Warm Edge spacer bar, delivering an impressive U Value of 1.4 W\/m2K. This means you benefit from reduced heat loss, lower energy bills, and a more comfortable living environment year-round. The robust espag locking system, complete with a night vent position, ensures your home stays secure while allowing for controlled ventilation. The integrated trickle vent provides a steady flow of fresh air, helping to prevent condensation and improve indoor air quality—an essential feature for British weather conditions.\u003c\/p\u003e\n\n\u003cp\u003eInstallation is straightforward, with a white handle, PVC cill, and glazing packers included for a seamless fit. The cill is factored into the overall product height, ensuring accurate sizing for your project. All product handings are viewed from the outside, making it easy to select the right configuration for your needs. The window's crisp white finish complements any exterior, while the level 5 obscurity glass offers maximum privacy without sacrificing style.\u003c\/p\u003e\n\n\u003cp\u003eWhether you are a DIY enthusiast or a professional builder, the Crystal UPVC Window is a reliable, low-maintenance choice that meets the highest standards for energy efficiency and security. Its durable construction and modern features make it a smart investment for British homes looking to combine practicality with contemporary design.\u003c\/p\u003e\n\n\u003cstrong\u003eKey Features:\u003c\/strong\u003e\n\u003cul\u003e\n  \u003cli\u003eA Rated energy efficiency with a U Value of 1.4 W\/m2K\u003c\/li\u003e\n  \u003cli\u003eDouble glazed 28mm Low E unit with argon gas and Warm Edge spacer bar\u003c\/li\u003e\n  \u003cli\u003eObscure Pilkington Stipolytte glass for level 5 privacy\u003c\/li\u003e\n  \u003cli\u003eEspag locking system with night vent position for added security and ventilation\u003c\/li\u003e\n  \u003cli\u003eTrickle ventilation for improved air quality\u003c\/li\u003e\n  \u003cli\u003eWhite handle and PVC cill included (cill included in overall height)\u003c\/li\u003e\n  \u003cli\u003eEasy installation with included glazing packers\u003c\/li\u003e\n  \u003cli\u003eAll handings viewed from the outside for straightforward selection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: Crystal\u003c\/li\u003e\n  \u003cli\u003eMaterial: uPVC\u003c\/li\u003e\n  \u003cli\u003eColour: White\u003c\/li\u003e\n  \u003cli\u003eType: Top Opener Window\u003c\/li\u003e\n  \u003cli\u003eSize: 440mm x 610mm (including cill)\u003c\/li\u003e\n  \u003cli\u003eGlazing: Double glazed, 28mm Low E, argon filled\u003c\/li\u003e\n  \u003cli\u003eObscurity: Level 5 (Pilkington Stipolytte)\u003c\/li\u003e\n  \u003cli\u003eLocking: Espag with night vent\u003c\/li\u003e\n  \u003cli\u003eVentilation: Trickle vent\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cstrong\u003eIncluded Items:\u003c\/strong\u003e\n\u003cul\u003e\n  \u003cli\u003eCrystal uPVC window unit\u003c\/li\u003e\n  \u003cli\u003eWhite handle\u003c\/li\u003e\n  \u003cli\u003ePVC cill\u003c\/li\u003e\n  \u003cli\u003eGlazing packers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Crystal","offers":[{"title":"Default Title","offer_id":55576537858424,"sku":"DS250767-000162","price":139.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/5362\/7541\/files\/3WHO440610-01.jpg?v=1781186053","url":"https:\/\/www.harveynorman.co.uk\/products\/crystal-3who440610-crystal-upvc-window-white-a-rated-top-o-ds250767-000162","provider":"Harvey Norman","version":"1.0","type":"link"}