Emtek 322 / Papaiz is no longer making these Mortise lock hardware sets for storm doors.

They are easily replaced with the following:
Single Keyed Locks: for doors 1 to 1-1/4 inches thick use 302043
Double Keyed Locks: for doors 1 to 1-1/4 inches thick use 302042 

For doors over 1-1/4 inches thick you must use the solid brass handle-sets with interchangeable screws and spindles.
Please specify the thickness of your door if over 1-1/4 inches.

The Emtek 322 is actually a Papaiz lock made for Emtek - Not available, old style discontinued.
The 302042 has a key on both sides of lock.
The 302043 has a key on the outside and a thumb-turn on the inside
MOST 322\\'s had a narrow face plate - 3/4\\" wide
The replacements 323\'s are 13/16\" wide - only a 1/16\" wider but on some doors it will not fit into the recessed channel.
Open your door and on the edge where the mortise lock fits - Look and see if your faceplate of the 322 fits into a channel, If it does, you may have to file the edges down on both sides of the new lock to get a proper fit.

See article on Mortise Lock Conversion.