This is an Epson printer maintenance box, EPMB1. I mistakenly purchased this, and although I installed it once in an EW-M873T, it was not compatible. At that time, a hole was made in the upper filter part. [Condition] ・Installed in a printer once ・Hole in the filter part (see photo) ・Ink absorption is almost unused Please purchase only if you understand the above. Please refrain from purchasing if you are sensitive to these issues.