Branch Microclimatic System Duct

A metallic or nonmetallic item which directs low pressure air through air conditioning-heating system. It may be molded or otherwise fabricated in several parts. It includes two or more branches. It may also accommodate filters to prevent cbr agents from entering the crew environment of a ground vehicle, aircraft, ship, portable shelter, and the like. Excludes duct assembly, air conditioning-heating aircraft and pipe, air conditioning- heating.