RepRap Champion ® Metal DIY Hot End for RepRap 3D Printer 1.75mm Filament, 0.4mm Nozzle, 12V 40W Heater, NTC 3950 Thermistor Hotend : Amazon.co.uk: Business, Industry & Science
RepRap Champion 3D Printer MK8 Extruder Feeder Kit (Rigth Side) with Setpper Motor - Walmart.com
RepRap – Core3D Custom Printers
Amazon.com: E3D V6 Hot End Full Kit 1.75mm 12V Bowden/RepRap 3D Printer Extruder Parts Accessories 0.4mm Nozzle : Industrial & Scientific