Replacement grease filter locks for Technica and other brands. Over time ours became brittle and just fell apart. Needs a couple of M3 8mm screws. Use the slider to just clip it in place.
Print the top part with support. Best to print slider lock at 100% infill.

To assemble, take the top part. Remove the support in the cavity and insert the lock slider into the cavity. Place these two parts into frame of grease filter and secure with the two small original M2 screws. Now place the bottom part over the top part and secure the top part to the bottom part with the two additional M3 screws.

Slide lock back and place filter into the rangehood. secure by sliding the lock forward until it clips onto the frame of the rangehood.