Pentair Omnifilter Pb55-20 Heavy Duty Carbon Block Lead & Cyst Reduction Filter Cartridge, 0.5 Micron, 20" X 4.5" (item #pb55-20-Sc-S18)

Item #: PB55-20-SC-S18 (PB55-20)
Dimensions: 20" x 4.5" (Big Blue)
Micron Rating: 0.5 (dense carbon block)
Reduces: Lead, cysts (Cryptosporidium, Giardia)
Certification: NSF/ANSI Standard 53 (lead & cyst reduction @ 10 GPM, when used with BF55 housing/PB55 system)
Capacity: 40,000 gallons or 4-5 months
Compatible Systems: OmniFilter PB55, BF55, BF56, and most 20" heavy duty whole home housings
Water Type: Chlorinated or non-chlorinated (well) water

Protect your entire home from lead and waterborne cysts with the Pentair OmniFilter PB55-20 heavy duty carbon block replacement cartridge (Item #PB55-20-SC-S18). Sized for standard 20" x 4.5" Big Blue filter housings, this dense 0.5-micron carbon block cartridge mechanically reduces lead along with Cryptosporidium and Giardia cysts, delivering professional-level protection at every tap in your home.

The PB55-20 is NSF/ANSI Standard 53 certified for the reduction of lead and cysts at 10 GPM when used with the Pentair OmniFilter BF55 filter housing or PB55 filtration system, giving verified performance you can rely on. Its carbon block design delivers a high flow rate with low pressure drop, so you get strong filtration without sacrificing water pressure, and it's suitable for use with both chlorinated and non-chlorinated (well) water supplies.

Rated for a 40,000-gallon capacity or 4-5 months of filter life, the PB55-20 should be replaced on that schedule or sooner if you notice a drop in water pressure or water quality. It also helps protect water-using appliances so they operate more efficiently, saving money and energy. Beyond the OmniFilter PB55, BF55, and BF56 systems it's designed for, it's compatible with most 20" heavy duty whole home housings from other major brands and can replace any 20" x 4.5" carbon filter.