The 4310 Nanotechnology Certified Replacement Filters 3-pack includes 3rd party IAPMO testing certifications and 2,000 gallon capacity. This filter 3-pack contains all filters for the 4300 Nanotechnology Gen3 Certified Under Counter Filtration System:

4301 DE Cartridge with FI – first stage:

• Reduces micro-pharmaceuticals
• Reduces lead to below Federal Action Level of 10 ppb
• Removes organic contaminants
• Reduces trace pharmaceuticals

4302 DF Cartridge – second stage:

• Reduces chemicals, tannins and heavy metal
• Enhances taste, odor and color
• Greatly reduces chlorine
• >99.95% Endotoxin Removal
• Reduces colloids
• Microplastics removal

4303 Advanced Nano Filter – third stage:

• Reduces viruses up to 99.999%
• Reduces bacteria up to 99.9999%
• Reduces parasitic protozoan cysts such as Giardia and Cryptosporidium
• Removes waterborne contaminants such as bacteria, cysts, viruses and colloidal particles
• Captures particles as large as tens of microns or as small as a few nanometers
• Lowest Pressure Drop – Comparable to a 2-3 µ/micron filter
• Wide pH Ranges – Effective from pH 4 to pH 9
• High Dirt and particulate retention – Up to 25 times of a conventional filter