Enhance your home with the Crystal uPVC Top Opener Window, a popular choice in the UK known for its outward opening vents and robust design. This A-rated window boasts a U-Value of 1.3 W/m2K, featuring 28mm Low E glazing filled with argon gas and a Warm Edge spacer bar for excellent thermal efficiency. It includes a white handle and sill (integrated into the overall product height), along with an Espag locking system offering a night vent position for added security and ventilation. The trickle ventilation feature ensures controlled airflow into your living space. Made from durable U-PVC, this window is slim yet strong, insulating, and easy to maintain, promising long-lasting aesthetic appeal. Viewed from the outside, the sizes shown are the actual product dimensions. Specifications: Dimensions: H:82.0 x W:82.0 x D:7.0 cm, Colour: White, Guarantee: 10 Years, Material: U-PVC, Model Number: 3WH820820. Product Summary: A Rated uPVC casement window, outward opening, white, 820mm x 820mm, thermal efficiency, argon gas glazing, Espag locking, trickle ventilation.