Aga (16 x 1mm) Female to 9/16″-18 Unf (2nd Stage Scuba) Male
The Aga Swivel is one of the most popular add-on’s for your Interspiro Divator MKII (AGA) mask. It not only gives you a 3 way 360° rotation, but it also converts the AGA’s 16 x 1mm metric threads to a standard scuba 9/16″-18 fitting.