Cation DI Resin Cartridge 10" Color Changing Pumps The filter has two 1/4"

The filter has two 1/4" quick connect fittings

That is enough resin for four refills

Comes equipped with three 1/4 inch T-fittings (also available with 3/8″ or 1/2" T-fittings)

allowing for physical separation

Cation DI Resin Cartridge 10" Color Changing Pumps The filter has two 1/4"CATION DI Cartridge Color Changing Nuclear Grade Single Bed CATION Resin Professionally packed in a standard 10" refillable cartridge the same day you order Sealed in a mylar bag to guarantee freshness. Our standard 10" refillable cartridge is professionally packed with color changing nuclear grade CATION di resin sealed in a mylar bag. The color changes from purple to amber as the resin exhausts. This helps you to visually keep track of the quality