Water Filter Cartridge Compatible with 3M Aqua-Pure AP431

Compatible Models - Fits for 3M Aqua-Pure AP431, HF8-S, KleenWater KW431. Interchangeable with 3M Aqua-Pure AP430, AP430SS & SF18-S Scale Inhibition System. Interchangeable with 3M Aqua-Pure AP430, AP430SS & SF18-S Scale.

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