Confirm the integrity of the watertight seal on your Ikelite underwater camera housing with this Hand Pump with Gauge. The unit is compatible with the #47001 and #47003 vacuum valves, and includes the #47005 tubing insert. All together, these components allow you to check for leaks and create a vacuum inside your housing, in order to protect your camera and lens against water damage. It will work on nearly all Ikelite housings, including all those with a spare 1/2"-20 accessory port and older housings without this port, as well as all DSLR models made since 2009.