Featuring a 2U high. full rack width foot print. the Sherbourn C12-FAN employs three 4 .75" fans and can be easily accomodated in any application utilizing the supplied rack mount panel or as a stand alone application. The C12 has a built in temperature and pig-tailed remote thermostat switch to automatically control the thermally governed fans. In addition. the C12 has a sync switch to allow two units within the same installation to operate in tandem. The C12 also features a 12-volt trigger. The optional exhaust-hose kit. H10. allows for easy adaptation to any installation and flawlessly exhausts hot air from the environment through the C-12 using the flexible. heat resistant hose attachment.