Quick take
Use Frigidaire FPPWFU01 or a compatible PWF-1 cartridge explicitly listed for FRFS2823AS.
Manufacturer-verified mapping
Frigidaire’s FRFS2823AS product page lists FPPWFU01 PurePour PWF-1 under accessories for this refrigerator.
OEM baseline
FPPWFU01 gives the cleanest manufacturer-supported fit reference.
Compatible options
Aftermarket PWF-1 filters can lower recurring cost, but compare exact certification and fit.
Annual ownership
Because refrigerator filters are recurring consumables, yearly spend is the useful comparison metric.