Cathay Mechanical Seals Company offers catridge mechanical seals applied to Grundfos pumps. Sizes: 12mm, 16mm, 22mm Seal face material: TC/TC, TC/Carbon O-ring: EPDM or Viton Metal parts: 316SS or 304SS Welcome your inquiries. Wetsbin Cheng ------------------------------------------ CATHAY MECHANICAL SEALS COMPANY Kunshan China Tel: 86-512-57459648 Fax: 86-512-57454369 Cell:13915747122 E-mail: wetsbin.cheng@msealschina.com MSN: wetsbin@hotmail.com http://www.msealschina.com