The three questions above do not fit. The filters are not designed to clean and the filter really does not have much to do with quick brewing. They are easy to use. Just put them in the holder and re-insert the holder in the reservoir of the coffee maker.
These filters seem to do the job w/no drama or fuss. Easy to install in the coffee maker's holder. They are identical in appearance to the more expensive "brand" items I saw while shopping online. Much less expensive.
The filter had an exact fit for my machine. I actually believe that my brewed coffee tastes better with the filter. The filter size matched perfectly just not to the coffee maker model number online. Im happy the filter fits and does not require replacing until I brew 60 pots of coffee. Also a very good buy!