Pentek PD-25-20 Polypropylene Filter Cartridge, 20" x 2-1/2", 25 Microns

Pentair Pentek PD-25-20 Sediment Water Filter, 20-Inch, Whole House Polydepth Polypropylene Replacement Cartridge, 20" x 2.5", 25 Micron

Pentair Pentek C1-20 Carbon Water Filter, 20-Inch, Whole House Dual Purpose Powdered Activated Carbon-Impregnated Cellulose Replacement Cartridge, 20" x 2.5", 5 Micron

Pentair Pentek EP-20 Carbon Water Filter, 20-Inch, Whole House Carbon Block Replacement Cartridge with Bonded Powdered Activated Carbon (PAC) Filter, 20" x 2.5", 5 Micron