Inquiry (采购产品): manometer fluid Dear sir or ma'am, I am trying to get information on the fluid used in the mark II model 25 manometer. To my knowledge, there is a fluid that is used with with this monitoring device that needs changed/added. Please advise. **** Hidden Message ***** Jay Sammons 96915 GUM Company: US NAVY Title: Petty officer 2nd class Phone: 671-339-5159 E-mail: jaimeson.sammons@fe.navy.mil **** Hidden Message ***** jaimeson.sammons@fe.navy.mil