FYSETC Prusa i3 MK3 Upgrade Hotend Parts HT-NTC100K Thermistor Sensor High Temperature +250 Degrees 2 Pins for 3D Printer MK3 Extruder Heater Block 3Pcs. Not for MK4 XL Nextruder heater block. HT-NTC100K thermistor adopts white high-temperature cord, can bear higher temperature.
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