JBSS
Allows for two tanks to be connected to a single Ocean Reef Full Face Mask removing the need to either swap hoses or remove the mask to change bottles.
Best used for Sidemount, or for deco stage bottles.
You can quickly and safely swap between different tanks as needed by removing the lock, changing the block to the other side and replacing the lock.
Hoses can either be directly connected, or can be connected through Quick Connect adaptors to allow for multi stage decompression.