Mediaguard is mounted between the control valve and the tank, exhibiting consistently superior KDF Process Media as pretreatment media to improve the performance and economy of your water softener system. The KDF Mediaguard filter system can be added to any of our water softeners or filters to give it an extra level of filtration capability. For municipal water, KDF 55 Mediaguard removes chlorine and heavy metals in your softener or filter system. MediaGuard is mounted between the control valve and the tank, exhibiting consistently superior KDF Process Media as pretreatment media to improve the performance and economy of your water softener system. All KDF Process Media forms are effective in controlling the buildup scale, making them ideal for use in GAC beds, ion exchange resins, carbon block filters and inline carbon filters. This KDF-55 MediaGuard effectively removes moderate amounts of chlorine and heavy metals- For City Water. The KDF MediaGuard filter system can be added to any of our water softeners to give it an extra level of filtration capability. For municipal water, add the KDF-55 MediaGuard - it removes chlorine and heavy metals in your softener or filter system. Chlorine can degrade resin and cut its life in half (about 7-10 years @ 1 ppm chlorine vs. 15-20 years @ 0 ppm chlorine). The MediaGuard "twist-locks" onto the valve base and simply slides down the riser tube (will not work on the Turbulator riser). Water enters the MediaGuard and is distributed into the four chambers containing the KDF media. As it enters the chambers, the media is picked up and "swirls" with the water - this mixing action greatly increasing the contact time with the water. The water then exits the chambers where it continues on through the softener resin and then exits through the riser tube. During backwash, the flow is reversed. The resin is lifted and cleaned of sediment, and the KDF media releases any oxidized contaminants, revitalizing them.