40mm x 40mm x 10mm 12V Fan Huge Amounts of Air for its Size Mounts Directly to NEMA 17 Motor
40mm x 40mm x 10mm 8CFM 12v Fan. The perfect fan for your extruder or anywhere else you need a lot of air in a small package. This little fan moves a huge amount of air for its size (8CFM). We use this fan to keep the heat creeping up our filament barrel on our extruder. Perfect replacement for Makerbot MK7 Extruder Fan with 12v Power Supply