Marine Air Blower 500 Flange - 12V 4″ flange mounted marine ventilation 12V radial blower with capacity 500 m3 per h, 324 CFM. Inlet 100mm, outlet 103mm. Body in hermoplastic PA6 high durable white Nylon with integrated blower motor. 12A fuse. Interchangeable with Johnson Pump 80-47417-01. Features: * Weight: 2.4 kg/ 5 lbs * Dimensions: 290/11.4L x 257/10.12H x 150/5.9W mm/in  * 4' Flange * CE marked ISO 9097:1991 Marine (small craft electrical fans), ISO8846 1990 (ignition protection), ISO 10133 2000 (electrical systems), EN55014-1 2006 (2004/108EC)