The City of Kenton Government Facebook page explained difference of colors found on fire hydrants throughout the city.
Hydrants with a red bonnet are Class C and produce 499 gallons of water a minute or less.
Orange is for Class B with 500-999 gpm.
Green is Class A producing 1000-1499 gpm.
Light Blue hydrants are Class AA and will produce 1500 gallons per minute or more.