This heavy-duty version socket wrench will save a lot of pin spanners in attempt to remove the end cap (spring retainer) of pre-2004 Aqualung Calypso first stage model.

The tool will put the force applied perpendicular to the cap, improving stability. The perfectly fitted pins reduce the chance of damaging the end cap.

Machined from stainless steel 304 and fitted with a removable cross handle. 

Regulator is not included.