Compatible Radial Flow GAC Filter – MKX-B20-RFL for Pentair Pentek® RFC-20BB, VIQUA® C2-02, LUMINOR® LC-20AC & Aqua Flo® 36091

Improve the taste and quality of your water with the MKX-B20-RFL compatible radial flow granular activated carbon (GAC) filter cartridge. Designed for high-flow whole-house applications, this 20" x 4.5" Big Blue filter reduces chlorine taste and odour while minimizing pressure drop. Its radial flow design maximizes carbon contact time and dirt-holding capacity, delivering excellent performance and extended filter life.

Manufactured with premium coconut shell activated carbon, the MKX-B20-RFL fits most standard 20" x 4.5" Big Blue filter housings and is an excellent compatible replacement for Pentair Pentek® RFC-20BB (155247-43), VIQUA® C2-02, LUMINOR® LC-20AC, and Aqua Flo® 36091 filter cartridges. Ideal for residential, commercial, and well water applications, this filter helps reduce chlorine taste and odour while maintaining high flow rates. Replace the cartridge every 6–12 months, or as needed based on your water quality and usage.