Visit the sites below for the various types and styles of available sprinklers

Reliable - http://www.reliablesprinkler.com/sprinklers.php
Viking - http://www.vikinggroupinc.com/en/technical/233/266
Tyco - http://www.tyco-fire.com/#
Globe Sprinkler - http://www.globesprinkler.com/
Victaulic - http://www.victaulic.com/en/businesses-solutions/fire-protection-systems/