A:Answer Hi Jwhooch,
Thanks for your interest in replacing your WF448AAP/XAA with an updated model. SilverCare is no longer a feature offered on Samsung Washers, and hasn't been for several years. Perhaps the Customer Service Representative recommended the WF45H6300AG/A2 on the basis of the 4.5 cubic foot capacity or other features that are currently available, such as Steam, Sanitize, Self Clean +, VRT and the Diamond Drum.
Have a great day!
Ms. Samsung