Whole House Cuno AP12T Case replacement Filter

[ahoppe]

I have a whole house Cuno AP12T case. I need a replacement filter. The system I have is used to remove red rock sediment. It automatically back washes the filter every hour for ten seconds. I have a 5 micron pre-filter. I beleive the 20" filter that came with it is less than 1 micron. But all I see that you have for a replacement is a 1 micron. It appears to be the pleated cellulose material. What item should I Puchase, the ECP1-20? I ordered the 20-20 under the mistaken idea it was less than 1 micron. Please advise.

[waterfilters]

All of the filters on this page will work in your system, if you are certain you need a 20" x 2.5" cartridge. Whole House Water Filter and 20 Inch Replacement Sediment Filters and Replacement Carbon Filters

Thank you,
WaterFilters.NET