Found in old closed up store. Three new
old stock, never used and in the original boxes.
Below, from the manufacturer found on the internet ( I
believe this is the correct and same item even though these
this one is vintage)
Hoffman Steam Air Vent. Float-type vent 1/8" NPT angle
connection Single non-adjustable port Maximum operating
pressure 6 PSI
For ordinary one-pipe system that doesnt require
proportional venting Steam Air Vent. HOFFMAN STEAM AIR
VENT 1/8" NPT. RADIATOR AIR VENT.
These were stored for years in the store needs a
polishing :)
If you have an old house or are renovating, these would come
in handy with the old steam radiators.
Please view all pictures and read descriptions carefully and
send a message with any questions prior to purchasing.
Thanks for looking.