Free images results:

Hydrant pictures, stock photos and images


Hydrant Royalty Free Stock Photo
Author: Parentx
Hydrant Royalty Free Stock Image
Author: Ichtor

Also, here are some commercial RF-licensed images that match your search criteria:  
Hydrant Stock Photos
Author: Webexx
Hydrant Stock Image
Author: Tribalium
Fire Hydrant Stock Photo
Author: Yanc