Kent Brass Flow Water Meter Direct Read C700 Cubic Feet.
The inlet and outlet are brass 1” “male” connections. Depending on what the feed is, that will determine which fittings you’ll require. If it’s a residential connection, the water feed from the City of Vancouver will likely be ¾” so you would need a ¾” to 1” adapter.
The same holds true for the other side, which will be determined by the size of the distribution pipe.
If it’s for a commercial application, then the feed from the City will likely be 1” so no adapter required. Just a threaded 1” to 1” compression fitting.