Including filter system and high-performance 4:2 FTS filter.
4:2 FTS is one of the PFAS chemicals that can move through soil and water and turn up on lab reports for homes. Shorewood homeowners often first hear about it from a utility notice, a private well test, or during a real estate inspection. Because you won’t see or taste 4:2 FTS, many residents choose to limit exposure and secure the water used for drinking, cooking and bathing. That starts with picking treatment specifically aimed at PFAS rather than only sediment, softening, or basic taste filters.
4:2 FTS is discussed as part of the larger PFAS family, so it’s common to see it mentioned alongside other fluorinated compounds on reports. Standard carbon pitchers, water softeners—particularly in hard-water areas like much of Lee County—and simple sediment cartridges aren’t guaranteed to remove PFAS reliably. For Shorewood homes, the most dependable strategy is whole-house treatment at the main line so showers, laundry, kitchen and appliances are all covered instead of relying on a single point-of-use faucet filter.
To reduce 4:2 FTS across an entire house, the most effective single solution is a high-capacity granular activated carbon (GAC) whole-house unit sized and specified for PFAS removal. Activated carbon can adsorb many PFAS chemicals, but its success depends on having sufficient carbon volume and enough contact time as water passes through the tank. That’s why a full-size tank-based or backwashing GAC system is usually a better match for meaningful whole-home reduction than small inline cartridges, especially in homes with hard Lee County water where proper sizing extends media life and performance.
A whole-house GAC system is installed on the main water line to treat water for every faucet, shower and appliance in your Shorewood home. These systems are commonly paired with a sediment prefilter to protect the carbon bed from clogging or channeling—a key step in hard-water areas of Lee County. For contaminants like 4:2 FTS, regular maintenance matters because spent carbon won’t continue to adsorb PFAS. Mr. Pure Water can help select the right GAC system for your home’s flow and water conditions and keep it serviced for reliable, house-wide protection.