how do you clean the holder for the filter on coffee pots?

Which coffee filter cone size corresponds to a filter holder that’s 4.5 inches wide?

I can’t find out which coffee filter cone size I need for my coffee maker. There isn’t any information anywhere. Thanks for your help!
My question is regarding “cone” style filters, not urn. I believe there is only one type of “urn” style filter. Cone filters, on the other hand, come in sizes #2, #4, #6. [...]

DO any new coffee makers have a removable water holder?

I have a older Hamilton Beach Coffee maker and the place were you put the clean water is removable. You take it to the sink… fill it up and slide it back into the holder. I love that attachment. It is time to retire the old maker but I want to make [...]