Free images results:
 

Hydrant pictures, stock photos and images

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