The Crystal top opener PVC-U window is grey 7016 external, white internal, measuring 610mm x 610mm (W x H). It features A Rated glazing, an Espag locking system, and a white handle. A PVC cill is included, which is incorporated into the overall product height. The product is viewed from the outside. This durable and easy-to-maintain uPVC window offers excellent thermal performance with its multi-chambered profile and high-quality 28mm double glazing. It provides superior heat retention, helps reduce condensation, and features trickle ventilation for improved airflow. The window has an anthracite grey exterior and a classic white interior.