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Pentek™ Big Blue™ Carbon Filters
Volume pricing available for most items. See individual product pages for details. We will BEAT any price on original Pentek filter cartridges! If you find a lower price, tell us about it here
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Big Blue™ carbon cartridge filters are used to improve water taste and odor as well as remove chlorine and VOC's. Big Blue™ size water filters are 4-1/2" in diameter and either 9-3/4" in length (for 10" housings) or 20" long (for 20" housings).
- C Series and NCP Series cartridge filters composed of carbon impregnated cellulose (non-cellulose for NCP series) offer both particulate filtration as well as taste, odor and chlorine reduction at a economical price, but have limited capacity (gallons of water treated).
- GAC Series, CC Series, RGC Series and CGAC Series GAC (granular activated carbon) cartridge filters provide taste, odor and chlorine reduction and moderate capacity but with generally lesser particulate reduction.
- EP Series, EPM Series, CBCC, CBR2, CEP Series and CBC Series carbon briquette filters offer the highest capacity (more time between filter exchanges) and varying levels of particulate filtering, but are the most expensive.
Sediment filtration prior to carbon filtration is recommended on high turbidity (high total suspended solids) feedwaters. See individual products for more information.
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Filter Catalog
Carbon Filter Selection Guide

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FC15565143 | C1-20BB Big Blue Carbon Filter, Pentek 155651-43, 20" Length, 4-1/2" Diameter, 5 Micron |
$27.49
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D1004488 | NCP-BB Pleated Polyester Carbon Big Blue Filter, Pentek 155398-03,, 9-3/4" Length, 4-1/2" Diameter, 10 Micron |
$16.69
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D1004498 | NCP-20BB Pleated Polyester Big Blue Carbon Filter, Pentek 155382-03, 20" Length, 4-1/2" Diameter, 10 Micron |
$30.99
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FC15515303 | GAC-BB Granular Activated Carbon Big Blue Filter, Pentek 155153-03, 9-3/4" Length, 4-1/2" Diameter |
$19.99
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FC15524903 | GAC-20BB Granular Activated Carbon Big Blue Filter, Pentek 155249-03, 20" Length, 4-1/2" Diameter |
$40.99
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FC15517043 | CBC-BB Carbon Block Big Blue Filter, Pentek 155170-43, 9-3/4" Length, 4-1/2" Diameter, 0.5 Micron |
$31.99
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FC15531243 | CBC-20BB Carbon Briquette Big Blue Carbon Filter, Pentek 155312-43, 20" Length, 4-1/2" Diameter, 0.5 Micron |
$66.99
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FC15514103 | RFC-BB Radial Flow Carbon Big Blue Filter, Pentek 155141-03, 9-3/4" Length, 4-1/2" Diameter, 25 Micron |
$27.99
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FC15524703 | RFC-20BB Radial Flow Big Blue Carbon Filter, Pentek 155247-03, 20" Length, 4-1/2" Diameter, 25 Micron |
$54.99
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FC15554843 | EP-BB Carbon Briquette Big Blue Filter, Pentek 155548-43, 9-3/4" Length, 4-1/2" Diameter, 5 Micron |
$20.49
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FC15558343 | EP-20BB Carbon Briquette Big Blue Filter, Pentek 155583-43, 20" Length, 4-1/2" Diameter, 5 Micron |
$39.99
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FC15578243 | EPM-BB Carbon Block Big Blue Carbon Filter, Pentek 155782-43, 9-3/4" Length, 4-1/2" Diameter, 10 Micron |
$20.49
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FC15578343 | EPM-20BB Carbon Block Big Blue Filter, Pentek 155783-43, 20" Length, 4-1/2" Diameter, 10 Micron |
$36.99
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FC25567743 | CFB-Plus10BB Modified Carbon Block Big Blue Filter, Pentek 255677-43, 9-3/4" Length, 4-1/2" Diameter, 5 Micron |
$22.99
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FC45590543 | FloPlus 10BB Carbon Block Filter, Pentek 455905-43, 9-3/4" Length, 4-1/2" Diameter, 0.5 Micron |
$39.99
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FC25567843 | CFB-Plus20BB Modified Carbon Block Filter, Pentek 255678-43, 20" Length, 4-1/2" Diameter, 5 Micron |
$39.99
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FC45590643 | FloPlus 20BB Carbon Block Filter, Pentek 455906-43, 20" Length, 4-1/2" Diameter, 0.5 Micron |
$59.99
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