TORAY TORAY Trevino Treshower For purifying shower Replacement cartridge For RS51/RS52 1 piece - Brand: TORAY - Product Name: Purifying Shower - Part Number: RSC51 - Purpose: Replacement cartridge Recommended by the Japan Atopy Association Approval Number S1301602A Shipping via Yu-Packet Post Mini Thank you for viewing. I had purchased these in bulk for replacement, but no longer need them and have been storing them at home. There is a memo written on the outer box (see the second photo), but the contents are new and unopened. Please refrain from purchasing if you are sensitive to minor imperfections, as these are items stored at home and inspected by an amateur.