Pentek FloPlus-10 Carbon Block Filter Cartridge, 9-3/4" x 2-7/8", 0.5 Micron

Pentair Pentek FloPlus-10 Carbon Water Filter, 10-Inch, Under Sink Modified Molded Carbon Block Replacement Cartridge, 10" x 2.5", 0.5 Micron

Pentair Pentek DGD-2501-20 Big Blue Water Filter, 20-Inch Whole House Sediment Filter Cartridge Replacement, Dual-Gradient Density Spun Polypropylene, 20" x 4.5", 1 Micron, Pack of 1, White

Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack)