I mistakenly purchased this item, which was a set of bottle heads with a different model number, so I've been storing it at home. It's in the same condition as when I bought it. For those who own the compatible models, this is a recommended replacement part to have on hand for cleaning. Shin-Ei Industry Bottle Head Set for Minic DC-II (Minic DC2) and Sepa DC-II (Sepa DC2) Part Number: E7234-MWD2 Product Code: 200191266