Diaphragm retainer tool for older Aqualung models
Properly installing and removing the threaded Aqualung diaphragm retainer ring of older Aqualung second stage models.
Place the tool after removing the second stage cover on top of the ring that is holding the diaphragm by turning it counterclockwise the ring will be opened and the diaphragm can be removed.
When closing it after service do not over tighten the ring because of risking damage of the diaphragm.
It fits the diaphragm retainer ring of several (older model) Aqualung 2nd stages.