CCTREE 3D Printer Hotend Silicone Sock Heater Block Silicone Cover for Creality Ender Series, CR Series, Anet A8, MK7/8/9 Hotend, Brown,3 Pcs

works

Good to have a few of these around for when the original wears out

Marlin firmware has safety features that detect thermal runaway, but if your print cooling fan hits your heater block, it can cause a spurious trip (PID tuning is another part of fixing this problem)... the block cover helps with this issue, as well as keeping the thermister bead and heater cartridge better captured in the block (although no substitute for a solid connection!)

Great deal for 3

I wasnt sure they would fit because I have done the microswiss hotend upgrade but they fit perfect. Also fit my stock Anet A8 hotend perfect.

Fits great on cr10 and definitely makes more stable temps

Fit perfect an does what its supposed to

These worked great on my elEnder 3 pro.

Installed with no issues, running for 2 days now and Im very pleased (installed on Ender 3 Printer)

Better than stock,my stock one melted (ender 3 pro)