AQUA CREST AP431 Water Filter Replacement Cartridge for Aqua-Pure AP430SS, 9 Pac
3M Aqua-Pure AP431, HF8-S, KleenWater KW431. 3M Aqua-Pure AP430, AP430SS and SF18-S Scale Inhibition System. This protective action may help maintain water flow and potentially extend the operational life of water-using appliances such as water heaters and dishwashers.