ROLINE 19-inch roof ventilator units, ON/OFF The ROLINE 19-inch roof-mounted fan units are compatible with all pre-assembled network cabinets in the ROLINE Pro and Basic series. They are quick and easy to install in the roof module. An additional ON/OFF switch offers additional application options. The model is available in the standard colors grey (RAL 7035) and black (RAL 9005) and is optionally equipped with two or four integrated fans. Scope of delivery: https://elecena.pl/product/29348555/26210301-19-roof-fan-unit-4-fans-gray 2025-09-12 https://elecena.pl/product/29348555/26210301-19-roof-fan-unit-4-fans-gray 2026-06-26