Order # 83923909 Manufacturer Y1MFA1008 Manufacturer Precision Medical Application Chrome Flowmeter Material Chrome Body Scale Increments 0 to 15 lpm UNSPSC Code 42271707 They turn one outlet into two by allowing attachment of two flowmeters which can deliver oxygen or medical air to two separate areas The demand valves allow attachment of other equipment further saving space and expanding versatility The compact nature of these units eliminates clutter on the headwall The units are constructed of aluminum providing a lightweight piece of equipment that is not a strain on wall outlets