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  1. Remove This Item Cartridge Diameter: 4 1/2"

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  1. Big Blue by Pentek (2)
Cartridge Filter Sizes
  1. 9-3/4inch (5)
  2. 10 inches (23)
  3. 20 inches (30)
Manufacturer
  1. FlowMax (10)
  2. Matrikx (1)
  3. Nelsen (14)
  4. Pentek (25)
  5. Watts (8)
Cartridge Diameter
  1. 4.5" (3)
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  1. $0.00 - $10.00 (1)
  2. $10.00 - $20.00 (18)
  3. $20.00 - $30.00 (21)
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  9. $80.00 - $90.00 (1)
Micron Rating
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  2. 1 micron (4)
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  6. 25 micron (8)
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Whole House

Whole house water filters designed to treat the entire water supply to your home. We have many categories of whole house water filters. To help narrow your search for the whole house water filter that is right for you, select from the following departments:

Cartridge Filter Housings Sediment Filter Cartridges Carbon Filter Cartridges
Turbidity (Dirt) Filters Carbon Backwashing Filters UV (Ultraviolet Sterlizers)
If you have any questions about which whole house water filter is right for you, Ask Our Experts for help! We also offer Free Water Testing so you can be confident that your water system is designed to treat your specific needs.

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RFFE-20BB : Iron Reduction Big Blue Filter Cartridge from Pentek

Regular Price: $107.25

Special Price: $75.99

The Pentek RFFE-20BB Filter. Reduces up to 3 ppm of dissolved iron from water. For use in 20-inch Big Blue filter housings.
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WP.5BB97P, 0.5 micron string wound filter

Regular Price: $26.31

Special Price: $20.01

WP.5BB97P, 0.5 micron string wound sediment filter. 4 1/2" x 10". Learn More

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DGD-2501 Pentek Big Blue Filter

Regular Price: $18.95

Special Price: $13.95

DGD-2501, 1 micron sediment filter. Learn More

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WPX25BB97P, Big Blue 25 Micron, 10" String Wound Sediment Filter

Regular Price: $23.46

Special Price: $19.84

WPX25BB97P, 25 micron sand and rust sediment filter. Learn More

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DGD-5005-20 Pentek Big Blue Filter

Regular Price: $33.89

Special Price: $28.89

DGD-5005-20, Sand, rust, and dirt sediment filter. 4 1/2" x 20". Learn More

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Oil Absorbing Filter, OAC-20BB

Regular Price: $159.32

Special Price: $78.50

OAC-20BB. Oil absorbtion filter. 155596-03 Must be ordered six per case.

Instantaneous absorbtion - up to 90% of total hydrocarbons removed in a single pass
High Flow Rates
Low Pressure Drop
Media can hold 250-300% of its own weight, with no release of removed hydrocarbons

Gas and oil facilities
Leisure/commercial shipping bilge water
Surface water runoff (ie truck stops, airports, parking lots)
Auto Service Stations
Machine Shops
Industrial processes
Factories and Repair Shops
Car and Truck Washes

Dimensions: 20" x 4.5"
Core Inner Diameter: 1.110"
Max Temp: 125 F
Flow Rate: 5 - 10 GPM
Pressure Drop: 0.2 - 1.0 psi

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Matrikx +CTO/2 Extruded Activated Carbon Block Filter Cartridge

Regular Price: $79.21

Special Price: $66.10

Matrikx extruded activated carbon block filter. Used for chlorine and organic chemicals, removes taste and odor from water, also provides sediment filtration. 4" x 20" Learn More

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Nelsen Granular Activated Carbon Big Blue

Regular Price: $42.18

Special Price: $19.49

Nelsen granular activated carbon big blue filter. This filter is used as a taste and odor filter, removes chlorine, bacteria and other organics from your house water. 4 x 10" Learn More

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Acid Neutralizer Calcite Filter, Big Blue Cartridge

Regular Price: $45.99

Special Price: $31.50

4-1/2" x 20" Big Blue acid neutralizer, Calcite filled, filter cartridge. Learn More

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Acid Neutralizer Calcite Filter, Big Blue Cartridge

Regular Price: $33.15

Special Price: $24.99

4-1/2" x 10" Big Blue acid neutralizer, Calcite filled, filter cartridge. Learn More

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NFGAC-20WH, Nelsen 20" GAC Big Blue Filter

Regular Price: $88.43

Special Price: $41.99

Nelsen 20" Big Blue granular activated carbon filter cartridge. A direct replacement for the Pentek GAC-20BB filter.
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GAC-20BB Pentek Big Blue Filter Cartridge

Regular Price: $88.43

Special Price: $41.99

*Reduces Chlorine, Taste and Odor
*Dimensions: 4 1/2" x 20"
*Capacity: 25,000 gallons
*Flow Rate: 5 psi @ 4 GPM
*Temp Range: 40 - 125 F
*NSF Certified for Material Requirements
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