APEC RO Replacement Filters Pre-filter Set for All Under Counter ULTIMATE Reverse Osmosis Systems (Stages 1 - 3) Big Blue Whole House Water Filter 20 inch & 10 inch/STANDARD WHOLE HOUSE WATER FILTER 10 INCH HOUSINGS These essential 2nd stage filters

These essential 2nd stage filters remove up to 99% of contaminants including lead

this 10-inch system treats up to 11

This filter set effectively removes impurities

and great-tasting

Designed for high-flow applications with 1" inlet/outlet ports

APEC RO Replacement Filters Pre-filter Set for All Under Counter ULTIMATE Reverse Osmosis Systems (Stages 1 - 3) Big Blue Whole House Water Filter 20 inch & 10 inch/STANDARD WHOLE HOUSE WATER FILTER 10 INCH HOUSINGS These essential 2nd stage filtersThe APEC FILTER SET provides essential filtration for your water system, effectively removing contaminants and ensuring clean, safe, and great tasting water for your home.