I have an onboard standard carbon filter that I change annually (or as needed), and a dual cannister inline for city water prior to my water softener. The inline filter contains a 5micron sediment filter followed by a carbon filter. The sediment filter is changed about every 3 months and the carbon filter block about every 6-12 months.
I buy my filters from The RV Filter Store
, which is also where I purchased my inline canister filter.
2007 42' Country Coach Intrigue #12149 CAT C-13, 2014 SRX, Roadmaster Sterling, SMI AirForceOne
FMCA, Good Sam, CCFI, CCI, NWCC