This stainless steel heat-break with inline PTFE tubing is compatible with the MK8 hot-end. You can combine this product with other MK8 compatible products.
Note that the stainless steel is very thin, so you should not put too much force onto the heat-break.
This product can also be used as spare part for our Anet A6 - Prusa i3 PRO DIY kit. It will work for all regular filaments like PLA, ABS and PETG.