Vacuum system for Isotta housing

Hi everyone,

Just got a new Isotta housing for my Nikon D7500 and would like to know what would be the best (and preferably most compact) vacuum system to add to my set up Any suggestions are appreciated.

Vivid, http://www.vividhousings.com/leak-sentinel.php or Backscatter system: http://www.vividhousings.com/leak-sentinel.php

Vivid, http://www.vividhousings.com/leak-sentinel.php or Backscatter system: http://www.vividhousings.com/leak-sentinel.php

Thank you Joss!

Cheers,

M.