Ocean Reef Switch block

How does the Ocean Reef Switch block / dual tank valve work?

This is a short video of the switch block to show the size and the way it is operated.

On the bottom you have two inlets (this one fitted with the Ocean Reef Quick Disconnect Male Part) and at the top you have a single outlet where you will connect your standard hose to link with your second stage or OCEAN REEF IDM 

You can now switch from one cylinder to the next by a push of a button.

This is the simplest way to connect the IDM into a side mount configuration or when using multiple cylinders with your IDM.