Pentek C1-20BB Big Blue Water Filter, 20-Inch Whole House Dual Purpose Powdered Activated Carbon Replacement Cartridge, 20" x 4.5", 5 Micron, Black

Pentair Pentek C1-20BB Big Blue Carbon Water Filter, 20-Inch, Whole House Heavy Duty Dual Purpose Powdered Activated Carbon-Impregnated Cellulose Replacement Cartridge, 20" x 4.5", 5 Micron , Black

Pentair Pentek 158204 Traditional Slim Line Filter Housing, 1/2" NPT #20 Whole House Opaque Water Filter Housing with Pressure Relief Button, 20-Inch, Blue

Pentair Pentek P5 Sediment Water Filter, 10-Inch, Under Sink Spun-Bonded Polypropylene Replacement Cartridge, 10" x 2.5", 5 Micron