BLEMISHED Replacement valve for the drone and regulator sets.Scratch & Dent Savings!!! Product codes ending in "-2" are Blemished. They are New and Unused with Superficial blemishes that may include, blisters in the finish, scratches, dents, stains, discoloration, rust or pitting on metals, imperfect glazes, non-structural repairs such as putty in nail holes, or other surface marks. The irregularity does not affect the playability or sound quality of the instrument. These are a good value.