Culligan Water Tower filters

[suziq99]

I currently am interested in changing the filter for my Culligan Water Town system. Would you please explain which filters i should order and how many (do i need 2 arbon filters and if so, are they the same item number?) also, I havent changed the filter in 15 month (little use) so sould i also order a membrane as well?

[waterfilters]

The Culligan Water Tower filters are located here:
http://www.waterfilters.net/culligan/reverse-osmosis/Culligan-Water-Tower.htm

There are 4 stages that need to be changed. 2 of the stages use the same filter (Stage 2 & Stage 4). You can click Add to Cart next to each stage and then click continue shopping to go back and add the next stage.

Thank you,
WaterFilters.NET