One in and one out of the extrusion head

Description
This 1-in-1 out hot end kit is designed for A10,A20,A30,A30_Pro 3D printer. It can greatly reduce the risk of clogging or jamming so as to save filament for you. With its good craftsmanship, filament could be printed out of amazing prints. Besides, its standard 0.4mm nozzle delivers satisfactorily smooth surface finish. Printing enriches your daily life~

Specification:
1.Number of filaments:1
2.Filament material: PLA/ABS
3.Filament size:1.75mm
4.Nozzle size:0.4mm
5.Heater cartridge:24V,40W;diameter & length:6mm*20mm
6.Thermistor: PT3-25E2-S2