Pentek - RFC20-BB - 20" x 4.5" Radial Flow Carbon 25 Micron Filter 5 Micron1955 A second carbon block stage

A second carbon block stage provides final chlorine and taste removal before water reaches the membrane

5 micron sediment filter removes particulate before a 10 micron carbon block tackles chlorine

and replace Zobell's calibration solution every 90 days as it degrades with air exposure

or when calibration no longer holds

Pre-Filter Service

Pentek - RFC20-BB - 20" x 4.5" Radial Flow Carbon 25 Micron Filter 5 Micron1955 A second carbon block stageThe Pentek RFC20 BB is a 20" x 4. 5" radial flow carbon filter engineered to deliver high capacity chlorine and taste removal with minimal pressure drop and virtually no carbon fines release. With a 70,000 gallon capacity and 25 micron filtration, this GAC cartridge is built for whole house, well, and commercial applications where flow rate and water quality both matter. SPECIFICATIONS Pentek RFC20 BB Technical Details Model Number RFC20 BB (155247