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Can we use a 2 1/4`` or 1 3/8`` mushroom knob on the 9001 KR9 push pull mushroom button?<br />

Yes. Use the illuminated mushroom knob, 9001 *21 (2 1/4``). or 9001 *20 (1 3/8``) and a 9001 K54 adapter. This will void Type 6 rating.



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