Potassium Iron Filter
The Performa 268 FA is a valve featuring the 440i clock timer with a special
20 minute backwash for manganese greensand filters that use potassium
permanganate to regenerate. This control has a 25 GPM (94.6 LPM) service flow
rate and a 13.3 GPM (50.3 LPM) backwash rate. It is a 5-cycle valve designed to
be used with a potperm feeder. The cam is purple on this version.
Conventional iron filter using
manganesegreen sand and
potassium permanganate as an
oxidizer to remove iron and small
amounts of sulfur.
