Orion (Knight Electronics, Inc.) OD4010-24MB Fan; Dc; 24V; Plastic; 6 Cfm; 4800 Rpm; 20Db; 0.04A; Ball; Leads; 40X10mm https://www.amazon.com/dp/B005T9HMNA/ref=cm_sw_r_cp_api_glt_fabc_A7CB0NYG1ZPCE327Y6MD?_encoding=UTF8&psc=1