MountainFlow Refrigerator Filters have been certified by IAPMO, NSF and ANSI 42 in chlorine reduction. Their lifespans are determined by various factors, such as water quality and level of contaminants. But for the best filtering result, replace the fridge filter every 6 months or after it filters 200 gallons of water.

The primary goal of Pzfilters is to provide clean, healthy water to every American home. Make it a better domestic water experience. We've spent years researching the drinking water of households, Drinking filtered water can significantly make you look better and healthier. This makes us also very careful when choosing materials, manufacturers and suppliers.