Hydrovos Hv-ro1-pre/post Replacement Filter, Cartridge #1 For Hv-ro1600-od Tankless Reverse Osmosis System

Unique design maximizes filtration capability while minimizing expense. Single, dual function pre and post filter has separate chambers to protect the RO membrane AND provide a final polishing of the fresh, clean water. Convenient Do-It-Yourself filter replacement. Change filters in seconds. This filter is designed for 6 months life, even in high use households.