Making your own coffee in Bali

This is a strange topic but every morning the two of us drink coffee at home.  I am using a large coffee maker that makes 6-10 cups of coffee but only 4 mugs.  Perfect amount to drink each morning for 2 people.  BUT I can't find anywhere In Bali to buy paper coffee filters (the triangular shape ones) that fit the plastic cone for 6-10 cups.  The largest in the stores are 2-4 cup size.  I can't find anything on line either.  Can anyone help?

I don't know where to get it in Bali, perhaps from a restaurant equipment supplier. But I know that they sell loads of coffee filters on Tokopedia.

No luck on Tokopedia