Does an old Gartel require Geniza?<a href="#_ftn1" name="_ftnref1">[1]</a>
No. Nevertheless, it is proper to wrap it in a bag and place it in the garbage rather than placing it directly in together with all the filth.
<a href="#_ftnref1" name="_ftn1">[1]</a> See Piskeiy Teshuvos 21:2 footnote 42

Shulchan Aruch HaRav | Does an old Gartel require Geniza?

Does an old Gartel require Geniza?[1] No. Nevertheless, it is proper to wrap it in a bag and place it in the garbage rather than placing it directly in together with all the filth. [1] See Piskeiy Teshuvos 21:2 footnote 42