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20 x 4.5 Inch Big Blue Water Filters

Used in Whole House Systems, Commercial Filter Systems, and many other Water Filter Systems
101 Results
  1. 1
  2. 2
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  • American Plumber W20CLHD20 Pleated Cellulose Water Filters

    American Plumber W20CLHD20 Pleated Cellulose Water Filters

    (Retail Price: $35.99 ) $28.99
  • American Plumber WRC25HD20 Carbon Water Filters

    American Plumber WRC25HD20 Carbon Water Filters

    (Retail Price: $78.19 ) $69.99
  • 3M Aqua-Pure AP810-2 Whole House Water Filter

    3M Aqua-Pure AP810-2 Whole House Filter

    (Retail Price: $84.20 ) $52.99
  • 3M CUNO Aqua-Pure AP811-2 Whole House Filter

    3M Aqua-Pure AP811-2 Whole House Filter

    (Retail Price: $79.99 ) $58.99
  • 3M Aqua-Pure AP817-2 Whole House Water Filter

    3M Aqua-Pure AP817-2 Whole House Water Filter

    (Retail Price: $127.73 ) $85.99
  • Harmsco HB-20-1W CALYPSO BLUE 20-inch x 4.5-inch, 1 Micron

    Harmsco HB-20-1W CALYPSO BLUE 20-inch x 4.5-inch, 1 Micron

    (Retail Price: $59.99 ) $35.99
  • Harmsco HB-20-20W CALYPSO BLUE 20-inch x 4.5-inch, 20 Micron

    Harmsco HB-20-20W CALYPSO BLUE 20-inch x 4.5-inch, 20 Micron

    (Retail Price: $40.19 ) $38.99
  • Harmsco HB-20-50W Calypso Blue Water Filter

    Harmsco HB-20-50W Calypso Blue Water Filter

    (Retail Price: $49.99 ) $39.99
  • Harmsco HB-20-5W CALYPSO BLUE 20-inch x 4.5-inch, 5 Micron

    Harmsco HB-20-5W CALYPSO BLUE 20-inch x 4.5-inch, 5 Micron

    (Retail Price: $47.99 ) $31.99
  • Hydrologic 22006 BigBoy Replacement Carbon Filter - Green

    Hydrologic 22006 BigBoy Replacement Carbon Filter - Green

    (Retail Price: $88.79 ) $78.99
  • Hydrologic 22010 BigBoy Replacement Sediment Filter

    Hydrologic 22010 BigBoy Replacement Sediment Filter

    (Retail Price: $61.95 ) $47.99
  • Hydronix CB-45-2010 Replacement Carbon Water Filter 20-inch x 4.5-inch (10 Micron)

    Hydronix CB-45-2010 Replacement Carbon Water Filter 20-inch x 4.5-inch (10 Micron)

    (Retail Price: $58.99 ) $48.99
  • Hydronix SDC-45-2001 Sediment Polypropylene Water Filter Cartridges

    Hydronix SDC-45-2001 Sediment Polypropylene Water Filter Cartridges

    (Retail Price: $32.99 ) $25.99
  • Hydronix SDC-45-2005 Sediment Polypropylene Water Filter Cartridges

    Hydronix SDC-45-2005 Sediment Polypropylene Water Filter Cartridges

    (Retail Price: $29.99 ) $23.99
  • Hydronix SDC-45-2050 Sediment Polypropylene Water Filter Cartridges

    Hydronix SDC-45-2050 Sediment Polypropylene Water Filter Cartridges

    (Retail Price: $31.91 ) $20.99
  • Hydronix SPC-45-2005 20-inch x 4.5-inch Pleated Sediment Water Filter 5 Micron

    Hydronix SPC-45-2005 20-inch x 4.5-inch Pleated Sediment Water Filter 5 Micron

    (Retail Price: $40.07 ) $22.99
  • Pentek EPM-20BB Carbon Block Water Filters (20-inch x 4-5/8-inch)

    Pentek EPM-20BB Carbon Block Water Filter (20-inch x 4-5/8-inch)

    (Retail Price: $59.99 ) $52.99
  • Pentek FLOPLUS-20BB High Flow Carbon Water Filter (In Wrap)

    Pentek FLOPLUS-20BB High Flow Carbon Water Filter

    (Retail Price: $95.99 ) $76.99
  • Pentek GAC-20BB Drinking Water Filters (20-inch x 4.5-inch) (Front View)

    Pentek GAC-20BB Drinking Water Filters (20-inch x 4.5-inch)

    (Retail Price: $66.31 ) $53.99
  • Pentek NCP-20BB Carbon Water Filters (20-inch x 4-1/2-inch) (Front With Label)

    Pentek NCP-20BB Carbon Water Filters (20-inch x 4-1/2-inch)

    (Retail Price: $48.81 ) $42.99
  • Pentek OAC-20BB Oil Reduction Filter

    Pentek OAC-20BB Oil Reduction Filter

    (Retail Price: $112.79 ) $93.99
  • Pentek PCC-106 Phosphate Crystal Water Filter Insert

    Pentek PCC-106 Phosphate Crystal Water Filter Insert

    (Retail Price: $27.99 ) $20.59
  • Pentek R30-20BB Pleated Polyester Water Filters (20-inch x 4-1/2-inch)

    Pentek R30-20BB Pleated Polyester Water Filters (20-inch x 4-1/2-inch)

    (Retail Price: $37.99 ) $33.99
  • Pentek RFC-20BB Radial Flow Water Filters (20-inch x 4.5-inch) (Main Image)

    Pentek RFC-20BB Radial Flow Water Filters (20-inch x 4.5-inch)

    (Retail Price: $82.91 ) $66.99
  • Pentek S120-BB Sediment Water Filters (20-inch x 4.5-inch)

    Pentek S120-BB Sediment Water Filters (20-inch x 4.5-inch)

    (Retail Price: $25.34 ) $24.99
  • Pentek WP1BB20P String-Wound Water Filters (Sold Individually)

    Pentek WP1BB20P String-Wound Water Filters (Sold Individually)

    (Retail Price: $52.79 ) $44.99
  • WP25BB20P String Wound Water Filters (Sold Individually)

    WP25BB20P String Wound Water Filters (Sold Individually)

    (Retail Price: $46.79 ) $41.99
  • Pentek WP5BB20P String-Wound Water Filters (Sold Individually)

    Pentek WP5BB20P String-Wound Water Filters (Sold Individually)

    (Retail Price: $52.79 ) $41.99
  • WPX100BB20P Fibrillated Polypropylene Water Filter (Sold Individually)

    WPX100BB20P Fibrillated Polypropylene Water Filter (Sold Individually)

    (Retail Price: $44.39 ) $40.99
  • Pentek WS-20BB Water Softening Filter (20-inch x 4.5-inch)

    Pentek WS-20BB Water Softening Filter (20-inch x 4.5-inch)

    (Retail Price: $70.07 ) $53.99
  • 20 X 4.5 Spun Wound Polypropylene Replacement Filter by Tier1 (20 micron)

    20 X 4.5 Spun Wound Polypropylene Replacement Filter by Tier1 (20 micron)

    (Retail Price: $32.39 ) $18.59
  • Watts MAXETW-FF20 C-MAX Whole House Replacement Filter Cartridge

    Watts MAXETW-FF20 C-MAX Whole House Replacement Filter Cartridge

    $192.99
  • KX Matrikx +CTO/2 32-425-125-20 Carbon Block Water Filter (20-Inch x 4.25-Inch)

    KX Matrikx +CTO/2 32-425-125-20 Carbon Block Water Filter (20-Inch x 4.25-Inch)

    (Retail Price: $87.59 ) $68.99
  • KX Matrikx +Pb1 06-425-200-20 Lead Reduction Filter (20-Inch x 4.25-Inch)

    KX Matrikx +Pb1 06-425-200-20 Lead Reduction Filter (20-Inch x 4.25-Inch)

    $123.99
  • Pentek BBF1-20MB Mixed Bed Deionization Water Filter (20-inch x 4.5-inch)

    Pentek BBF1-20MB Mixed Bed Deionization Water Filter (20-inch x 4.5-inch)

    (Retail Price: $144.23 ) $115.99
  • Pentek CBC-20BB Cyst Reduction Water Filters (20-inch x 4-5/8-inch)

    Pentek CBC-20BB Cyst Reduction Water Filters (20-inch x 4-5/8-inch)

    $114.17
  • Pentek CRFC-20BB Chloramine Reduction Water Filter

    Pentek CRFC-20BB Chloramine Reduction Water Filter

    (Retail Price: $151.99 ) $135.99
  • Pentek DGD-2501-20 Sediment Water Filters (20-inch x 4.5-inch)

    Pentek DGD-2501-20 Sediment Water Filters (20-inch x 4.5-inch)

    $26.99
  • Pentek DGD-5005-20 Sediment Water Filters (20-inch x 4.5-inch)

    Pentek DGD-5005-20 Sediment Water Filters (20-inch x 4.5-inch)

    (Retail Price: $25.76 ) $23.99
  • Pentek DGD-7525 Sediment Water Filters (10-inch x 4.5-inch)

    Pentek DGD-7525 Sediment Water Filters (10-inch x 4.5-inch)

    (Retail Price: $21.35 ) $15.99
  • Pentek DGD-7525-20 Sediment Water Filters (20-inch x 4.5-inch)

    Pentek DGD-7525-20 Sediment Water Filters (20-inch x 4.5-inch)

    (Retail Price: $24.83 ) $22.99
  • Pentek ECP1-20BB Pleated Sediment Water Filters (20-inch x 4-1/2-inch)

    Pentek ECP1-20BB Pleated Sediment Water Filters (20-inch x 4-1/2-inch)

    (Retail Price: $33.99 ) $30.99
  • Pentek ECP20-20BB Pleated Sediment Water Filters (20-inch x 4-1/2-inch)

    Pentek ECP20-20BB Pleated Sediment Water Filters (20-inch x 4-1/2-inch)

    (Retail Price: $39.59 ) $29.99
  • Pentek ECP50-20BB Pleated Sediment Water Filter (Sold Individually)

    Pentek ECP50-20BB Pleated Sediment Water Filter (Sold Individually)

    (Retail Price: $31.99 ) $29.99
  • Pentek ECP5-20BB Pleated Sediment Water Filters (20-inch x 4-1/2-inch)

    Pentek ECP5-20BB Pleated Sediment Water Filters (20-inch x 4-1/2-inch)

    $29.99
  • Pentek EP-20BB Carbon Block Water Filters (20-inch x 4-5/8-inch)

    Pentek EP-20BB Carbon Block Water Filter (20-inch x 4.5-inch)

    (Retail Price: $69.77 ) $55.99
  • Pentek RFFE20-BB Iron Reduction Water Filter (20-inch x 4.5-inch) (Front No Label)

    Pentek RFFE20-BB Iron Reduction Water Filter (20-inch x 4.5-inch)

    (Retail Price: $109.99 ) $88.99
  • Hydronix SPC-45-2020 20-inch x 4.5-inch Pleated Sediment Water Filter 20 Micron

    Hydronix SPC-45-2020 20-inch x 4.5-inch Pleated Sediment Water Filter 20 Micron

    (Retail Price: $36.68 ) $25.99
101 Results
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