24V 40x20 hotend cooling fan
5/5
Replaces a 40x20 extruder cooling fan on Ender-3. Fewer blades w higher pitch runs quieter than 40x10. Less velocity but more pressure to provide better cooling w original Creality heat sink and all metal heat break using Hero Me dual duct w 50x15 centrifugal part cooling fan. Perfect fit. Recommended!