Fantasea FG7X II A R Housing for Canon G7 X Mark II Camera (*)The FG7X II A R Housing was specially designed for the Canon G7 X Mark II digital camera. The FG7X II A R Housing features an M16 port specially designed for the Fantasea M16A Vacuum Valve (the valve is not included with the housing). When the M16A Vacuum Valve is added to the housing, it enables using the housings pre dive vacuum check and an on dive leak detector. The addition of the M16A Vacuum Valve allows confirming the watertight seal for the