4-Stage Undersink Filter Replacement Pack

Replacement Filter Pack — 4-Stage Under Sink System

This upgraded filter pack provides advanced, natural filtration for city and well water, reducing a wide range of contaminants while preserving beneficial minerals. An optional inline mineralizer can be added for those who prefer trace minerals.

Stage 1: Advanced submicron filtration — captures fine sediment, bacteria, and cysts for cleaner water and better flow.

Stage 2: Nano-adsorptive filtration — combines nanofiber and carbon media to reduce PFAS, lead, fluoride, VOCs, and pharmaceuticals. Tested to NSF/ANSI 53 and meets P231 microbial reduction protocol.

Filters are non-customizable and compatible with all PureSync 4-Stage systems. For legacy setups, Cerametix and Aquametix filters remain available separately.

FILTER REPLACEMENT MANUAL

FILTER REPLACEMENT VIDEO GUIDE 

IN-LINE MINERALIZER MANUAL

SYSTEM SANITIZING GUIDE

In stock, ships within 2-3 business days.