Which of the following dehydrators or combination filter/driers features a core that can be replaced when the desiccant becomes saturated with moisture? GS-RA-10

Correct Answer: Option C — A

Replaceable core filter-driers utilize a heavy-duty outer shell housing a removable desiccant block. When moisture saturation or pressure drop limits are reached, engineers isolate the vessel, remove the cover flange, and replace only the internal core assembly.