Does the knob come with the metal insert?
Answer Hello Al. Yes, the knob 8181859 will come with the insert in it.
Is the price per 1 knob or 4 knobs?
Answer Hello! The control knob part number 8181859 comes one per package. Thanks!
Where can I buy the control knob in Semarang Central Jawa Indonesia. Thanks.
Answer Hello Sugijono! Unfortunatley, we do not have this sort of information available. It would be best to contact the manufacture of the product to obtain International Parts information. Sorry.