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 Perfect for whole house water

Perfect for whole house water treatment systems and standard 1" pipes

Ensure your family enjoys pure

Specially designed for the ROTL-600-PH tankless system

accurate results in just 3 seconds

COUNTERTOP WATER FILTER: No plumbing or installation needed

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 Perfect for whole house waterThe APEC FILTER SET provides essential filtration for your water system, effectively removing contaminants and ensuring clean, safe, and great tasting water for your home.