Water filter to fit Whirlpool American fridge freezers - S20BRBB22-A/G/ S20BRSB21-A/G/ S20BRSB21/ S20BRSS31-A/G/ S20BTSB21-A/G/S20BTSB21-A/G/ S20CCSS31-A/UK/ 20DR/ S20DRBB32-A/G/ S20DRBB/ S20DRSB33-A/G/S20DRSB33/ S20DRSS33-A/G/ S20DTSB33-A/G/ S20DTSB33-A/G/ S20ERAA32-A/G/S20ERAA32/ S22DFSS30-A/G/ S25BRSB31-A/G/ S25BRSB31-A/G/ S25BRSS31-A/G/S25BRSS31-A/G/ S25BRSS31/ S25BRWW20-A/G/ S25BRWW20-A/G/ S25CCSS31-A/UK/S25DRBB33-A/G/ S25DRBB33-A/G/ S25DRSS33-A/G/ S25DRSS33-A/G This is the latest cartridge and will fit all Whirlpool American fridge freezers with the cartridge in the grille at the base.Enhanced performance over the standard filter, removing a wider range of contaminants. Recommended that the Cartridge be replaced every 6 months.