Adapter for use with computer duster cannisters for adding liquid gas to your model submarine ballast system. 
 
With airbrush propellent being increasingly expensive and hard to find, an alternative was needed! This system utilizes a robust flexible air hose with locking nozzle so you don't need to juggle pressing down on a can and opening a valve while at the same time trying to vent the pressure vessel through your transmitter to get maximum fluid into it. 
 
The threaded end of the adapter simply screws directly into the can nozzle, creating a perfect, easily removable connection. 
 
NOTE: This product does not include the duster can itself. Those must be sourced by the builder separately. Available here on Amazon at the time of making this listing. (3 cans for $21 or 6 cans for $37)