The diaphragm retainer tool for Aqualung second stage is used to properly install and remove the threaded diaphragm retainer ring.
It fits the diaphragm retainer ring of several Aqualung 2nd stages including the Titan LX (2009 later models), Core, and Legend.
 
The Aqualung standard diaphragm retainer tool is precision machined from white acetal.
 
GTIN: 08720865017310