Whoops! You just bought the silicone sock 3 pack and didn't realize that you still have the old style heater block and it doesn't fit.
No worries, you don't need to be penalized for it. This product is the silicone sock upgrade minus the socks (since you already ordered them).
Semitec Thermistor cartridge, heater block, and sock to convert your bead style thermistor heater block to a sock compatible heater block.
This upgrade is compatible with E3D style hot ends including most clones and is also compatible with the Hexagon hot end used on the Robo3D and Lulzbot.
This kit comes with
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