The model number of this filter is AQU-WF37-10. Compatible with the following models: The AQU-1000R is manufactured to fit the Culligan 1000R, 1000R-D, Pentek QC10-CBRR; Fits Culligan IC-750, IC-1000, RV-750, RV-1000, SY-750, SY-750S, SY-1000, SY-1000s Pentek QC10-CBR-JG14 Undersink Quick-Change Filter System.
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