Pentek FloPlus-20BB - 20" x 4.5" Big Blue Carbon Block - Cyst 0.5 Micron Filter 000 Gal. Catalytic GAC Carbon Hydrogen Sulfide Removal Filter The integrated Twist Tap valve

The integrated Twist Tap valve automatically shuts off water flow when you disconnect the filter body

A declining GPH reading indicates membrane fouling or pressure loss before it affects water quality

Lubricate the o-ring with silicone grease and hand-tighten the housing sump until snug

consider replacement every 3 to 4 months

The 20K OHM range is suited for moderate to high-purity applications where real-time resin exhaustion monitoring prevents downstream contamination or spotting

Pentek FloPlus-20BB - 20" x 4.5" Big Blue Carbon Block - Cyst 0.5 Micron Filter 000 Gal. Catalytic GAC Carbon Hydrogen Sulfide Removal Filter The integrated Twist Tap valveThe Pentek FloPlus 20BB is a 20" x 4. 5" carbon block filter cartridge engineered to reduce sediment, chlorine taste and odor, and protozoan cysts down to 0. 5 micron with 99. 95% cyst reduction efficiency. With a 50,000 gallon chlorine reduction capacity at 4 gpm and NSF ANSI 53 certification, this Big Blue cartridge delivers whole house filtration performance with the dirt holding capacity of a 10 micron filter. SPECIFICATIONS Core Performance Data