How to connect ½" PEX to ½" galvanized pipe

This was my friend Tommy's brilliant idea to help me connect a PEX cold-water supply line to my garden hose spigot. Much of it depends on the size of the lines you are joining. Here, we were connecting ½" galvanized pipe to ½" PEX. From left, we used:

• a ¾" to ½" galvanized reducer, 
• a ¾" coupler with teflon taped threads, and 
• a ¾" to ½" PEX something-or-other

Worked like a charm.