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The 3M CUNO 20" Carbon Block is for use in the following filtration system:
The 3M Cuno 20" Carbon CFSRO125/CFSRO-1200 Prefilter is designed to be used with the CFSRO125 reverse osmosis membrane in the above system. This 3M Cuno filter is a prefilter. This Cuno pre filter is made of carbon block. This carbon block pre-filter is 20 inches in length.
The 3M CUNO 20" Carbon Block specifications: