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They have the original Allertor head on with the original rotor and stator which is 10/12 port it was only 8/12 port for a while (4 years to be exact) the pentrator horn is still there and now it’s a full siren and the fire chief said they will install it next to the Allertor no it won’t be replacing it. It will be used as a tornado siren, and they are repainting it a new color! Hope to see the penetrator up and running again!