How long a filter will last depends on how much dirt etc it hs to handle not time ...except the media takes up those pollutants and even in charcoal begins to row.
Charcoal filters with silver in the media kill bacteria and last as long or longer.
GE and Culligan whole house bit 10 in filters at Lowes and Home Depot etc come with a remote that lets you know it is time to change the filter....pores stopped up from use.
You might have to make your own stand for them and buy and hose connectors. They are a bit large but....
And still you do not want to leave the filter sitting there with pollutants in it forever....to start growing.
Certainly do not use a filter from last year or six months ago and if you hve been using questionable water sources or all water sources prior to using a filter sanitize the and lines.Those small in line blue filters ahve very little capacity and whn the fill up wit dirt etc, the next tine you open a tap it flushes past the filter. Such is the case dramatically seen at Midwest and other campgrounds on holiday weekends with lots of campers, ....that use well water.