PUR Baby Mineral Clear Replacement Filters, 2-Pack: * Filters clean water for mixing infant formula and cereal * Reduces heavy metals like lead and mercury * Filters water over natural minerals for a crisp, refreshing taste * Provides up to 200 gal of crystal clean water * Lasts up to 4-6 months of clean water * Pharmaceutical reduction not certified by NSF/ANSI, California or any state standard * Plastic