Finder 7f70 series cabinet ventilation fans 230v ac amp 24v dc emc finder 7f7090244230 a 250 x 250 x 1185mm 24v dc low noise ventilation fan for installation into an equipment cabinetthe low profile housing incorporates a replaceable filter for dusty environments the fan is supplied as an inlet filter blowing air into the cabinet but the motor can be easily reversed enabling it to be used as an extractor or exhaust fan finder 7f7090244230 cabinet ventilation fan 250 x 250