Fantasea FG7X II A Vacuum Housing for Canon G7 X Mark IIThe FG7X II A Vacuum Housing was specially designed for the Canon G7 X Mark II digital camera. The FG7X II A Vacuum Housing features the Fantasea Hybrid Vacuum Safety System (included with the housing), which contains both a pre dive vacuum check and an on dive leak detector. The system allows confirming the watertight seal of the housing prior to the dive using the vacuum system and monitoring the housing seal during the dive using the moisture