The Ametek RO-2127, WSRO10C, HDRO-10AG, and Ametek Kleen-Plus RO2127 Reverse Osmosis Systems use two replacement filters (1 carbon block and 1 sediment filter) and 1 RO membrane.
9-3/4" x 2-1/2" Coconut Shell Carbon Block 5 mic
MFG # CC-10, 155155, 155155-43, D20 FWS # CBCS-975
9-7/8" Polypropylene Sediment Depth Filter 5 Mic
MFG # P5, 155014, 155071, 155182 FWS # SD-25-1005
9-7/8" Polypropylene Sediment Depth Grooved Filter 5 Mic
FWS # SDG-25-1005
GE Osmonics Desal CTA-16 RO Membrane Element
MFG # ROM-16C, 155415-01 FWS # 1201332