AE Dimmerstat 8 D-1F Variac

Hi, i'm looking for a piece of ferrite that could fit into the bottom of varying output arm.
I contacted AE Dimmerstat in India, and they want to charge a fortune for a small piece of ferrite.
Ferrite is indicated with the yellow arrow with text to the right side
 

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  • AE Dimmerstat Label.jpg
    AE Dimmerstat Label.jpg
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