The Helios Fans KWL 45 – 160 FBT‑B is a low-profile stainless steel façade panel engineered for use with the KWL EC 45 – 160 decentralized ventilation unit. It is suitable for installations in outer walls with a thickness of 250 to 300 mm. The panel includes a bonded seal to ensure a secure and airtight fit. With dimensions of 235 x 204 x 100 mm, it provides a compact and durable exterior solution for ventilation systems in thicker wall constructions.