Gentex Mbu-20 MBU-23 Oxygen Mask Exhalation Inhalation Valve set up For Sale

Please note all winning buyers are expected to pay within 48 hours of sale ending unless they have contacted me to ask for longer to pay.ALL NON PAYING buyers ARE REPORTED TO AS SUCH.
Please take the time to view my other sales as I always combine shipping where possible to save buyers money and do not hesitate to ask questions as I always answer quickly and honestly.I have a few sets of Oxygen mask Inhalation and Exhalation valvesfor your consideration
Sold as pictured,
Used but still very good conditionI know the buyer of this set will be 100% satisfied with their purchase and it will be a great displayfor the Military or Aviation collector.
Thanks for your time and once again please do not hesitate to ask questions.