CFS Radial Flow Carbon Filter, 20 x 4.5 in, 6 Pack, Fits Pentek RFC20-BB

CFS radial-flow granular activated carbon cartridges in the 20 x 4.5 inch Big Blue size, 6 per pack. Water flows from the outer wall through the carbon bed to the core, reducing chlorine taste and odor.

• 6 radial-flow activated carbon cartridges
• Fits 20 x 4.5 inch housings: compatible with Pentek RFC20-BB and other standard 20 x 4.5 inch housings. This is a compatible replacement, not an original manufacturer part.
• Not an iron-reduction cartridge: this carbon cartridge is not designed or rated to reduce dissolved iron. For iron-related staining, select a cartridge or treatment system specified for iron reduction.
• Change when needed: replace when chlorine taste returns or pressure at the taps drops noticeably.
• Check the size: 10 inch cartridges are half as long and will not seal in a 20 inch sump, and 2.5 inch slim cartridges will not fit a Big Blue housing.

Car wash / spot-free RO cross-reference: replacement for Pentek RFC20-BB. Part numbers are listed for compatibility reference only; this is not an OEM product.