The #14 Copper Conductor Heads can serve both function and esthetic purposes. Mostly Conductor Heads are used to add curb appeal. There are instances where they are installed to collect large amounts of water from the roof.
When ordering this #14 conductor head with oval outlet, order the conductor head with the outlet that coordinates with your size of downspout. If you have a 4" round or 3x4 square Downspout, you will need the conductor head with the 4" outlet.
The size of the conductor head does not vary, just the oval outlet size at the bottom.