Affiliated Steam Equipment 2A Pipe Jacket Insulated Padded 3/4"-#150 Y

New Old Stock Surplus Item from Spare Parts Storage.
It appears the main trunk is set for a 4" pipe.
22" long (insulated section)
One opening for 3/4" pipe, one opening for 2" to 2.5" pipe.
3/4" opening approximately 12" from end
Larger side opening approximately 17" from same end