Fan, made of welded plastic. Acid resistant. Was once part of a Peter van Ginkel acid bath with rim exhaust. 230 Volt including flexible hose. Diameter of hose / fan outlet appr. 20 cm Price Euro 350,-- excl. VAT Can be very well used to build your own acid system. Or it can be used outside on a roof, to take care of ventilation of an acid room or printmaking workshop.