Smaller size speaker with full size performance will mount in more locations than ever before. The SA315U installs easily and delivers traffic clearing warning where it's needed: down and in front of your vehicle. This projector series sirens from Whelen feature 100 watt output and can fit behind most grills. They are only about 3 inches deep and offer a rugged Nylon Composite with a Non-corrosive aluminum housing. Please note:Whelen has changed the part number to the SA315U. Same great speaker just new part number.
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