Pentair Pentek ECP20-20BB Big Blue Sediment Water Filter, 20-Inch, Whole House Heavy Duty Pleated Cellulose Polyester Replacement Cartridge, 20" x 4.5", Blue End-Cap, 20 Micron
Brand: Pentek
Color: Silver
KEEP YOUR WATER CLEAN and protect your appliances by removing dirt, sand, silt and particulates
FITS ALL 20" Big Blue housings and can replace any 20" x 4.5" heavy duty sediment filter cartridge
LONGER LIFE with 33% more dirt holding media than many competitors
STRONGER than standard cellulose cartridges with a unique blend of resin-impregnated cellulose and polyester
REPLACE EVERY 6 MONTHS or when you notice a drop in water pressure or quality.  The cap is color-coded for easy replacement