Tier1 Replacement for Pentek R30-20BB 30 mic 20 in. x 4.5 in. Pleated Polyester Sediment Water Filter Cartridge (4-Pack) TIER1_R30_20BB_4_PACK - The Home Depot
Amazon.com: Pentair Pentek WP.5BB97P Big Blue Sediment Water Filter, 10-Inch, Whole House Polypropylene String-Wound Filter Cartridge, 10" x 4.5", 0.5 Micron : Tools & Home Improvement
Pentek 150164 #10 Standard VIH Whole House Water Filter Housing