Bing found the following results
Types of Sprinkler Heads - The Home Depot
Sprinkler Heads - Sprinkler Systems - The Home Depot
Types of Underground Sprinkler Heads | Lowe’s
Spray Heads & Nozzles | Rain Bird
Sprinkler Heads | Sprinkler Warehouse
Fire Sprinkler Heads: Types, Parts & Differences [Guide] | RCI
Fixed Head Sprinklers - Sprinkler Heads - The Home Depot
How to Replace a Sprinkler Head on an In-Ground Sprinkler System - Bob Vila
Lawn Sprinklers at Lowes.com
Tips for Choosing the Correct Sprinkler Head - DripWorks