Greetings, Have any Finnigan MAT 251 users found a source for replacements bellows, besides Thermoquest/Finnigan? Lora Wingate University of Michigan Department of Geological Sciences Stable Isotope Laboratory 425 East University 1013 C.C. Little Building Ann Arbor, Michigan 48109-1063 (734) 763-4690 fax (734) 763-0561 phone