The Elta SQU67/400 – 4‑3 is a mid-sized centrifugal box fan from the Qube range, engineered for effective ventilation in commercial and industrial applications. Featuring a 670mm box size and a 4‑pole, 3‑phase AC motor, it delivers reliable and efficient airflow performance. The fan is designed with interchangeable double-skinned panels and painted aluminium corners, supporting flexible installation with either straight-through airflow or a 90° outlet. Capable of operating in ambient airstream temperatures up to 50°C (or 40°C for 3‑phase EC versions), the SQU67/400 – 4‑3 is a durable and adaptable solution. Available in both AC and EC motor options, it is well suited for a variety of medium-capacity ventilation requirements.