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The standard fire extinguisher colour was changed to ‘signal red’ for 2 main reasons.
Firstly, red is the colour associated with both danger and fire and so there is an obvious association with fire extinguishers.
Secondly, red is the colour most easy to see, especially in a darker environment, such as a smoke-filled room.
Now there are many different equipment for fire extinguishing except fire extinguishers. I advise you to consult with this company https://www.americanbackflowpreventi...inspection.php and choose what suits you.