Pentair Pentek FloPlus-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Modified Molded Carbon Block Replacement Cartridge, 20" x 4.5", 0.5 Micron

Features

• PREMIUM HIGH EFFICIENCY CARTRIDGES provide outstanding chlorine taste & odor reduction and very small particle removal to create cleaner, safer water
• FITS ALL 20" Big Blue housing and can replace any 20" x 4.5" heavy duty carbon filter cartridge
• HIGH FLOW RATES AND LOW PRESSURE DROP similar to a nominal 10 micron carbon block cartridge with the particulate efficiency of a 0.5 micron cartridge
• NSF INTERNATIONAL tested and certified for your peace of mind
• 50,000 GALLON CAPACITY. Replace every 12 months or when you notice a drop in water pressure or water quality