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Replacement Cartridge CB3
For Under Sink Water Filter Models:  CBF3, OT32 and OB3

Buy 5, get 1 Free with the CB3-Six Pack!
Buy a case of 24 and save $160!



Model CB3
Filter type Carbon Block
Reduces: Rust & Sediment (Class I)
& asbestos 99.99
Reduces: Odor & Chlorine taste (97.59%)
Chloramine taste (96.5%)
Removes: Lead (98.60%) Mercury (96.50%)
Removes: Cryptosporidium & Giardia Cysts (99.99%)
Removes: VOCs (99.60%) - Including Atrazine & Lindane
Benefits Removes lead, Cryptosporidium and Giardia cysts, and 34 VOCs at 97% or better. Also removes chlorine and odors to give you great tasting water.
Average Cartridge Life 1 4 mos or 550 gal
Flow Rate2 .5 gpm
Micron Rating 3

1 Usage and the quality of water in your incoming line determine when your cartridge should be changed.
2 Gallons per minute.
3 The smaller the micron, the finer the filtration.


(Check or uncheck your selections then press add to cart)


Single Pack        $41.94
Double Pack       $83.88
Six Pack            $209.70
Case of 24          $838.80

Single Pack      $8.14
Double Pack    $16.28
Three Pack      $24.42
Six Pack          $40.70
Tank Wrench OW1      $8.62

Shipping $8.50
per order

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The CB3 is the highest performance carbon block cartridge on the market today. It is used in OMNI Undersink filters CBF3, OT32, and OB3. The CB3's carbon block removes chlorine and odors, harmful bacteria like Giardia and Cryptosporidium, lead, and volatile organic compounds (VOCs) like Atrazine (a herbicide) and Lindane (a pesticide), as well as 32 other VOCs, to give you great tasting, safe drinking water right from the tap, or from a dedicated faucet, depending on the unit selected.

Change filter every 4 months.
Change O-Ring with every 3rd filter change.

If you have an older Omni filter model that has been discontinued and need an O-Ring, please call our customer service number: (855) 855-1976 for assistance.

Do you need tank wrenches or o-rings?

Installation Information



Dovetail Distribution Company
Is an Authorized Distributor of Omni Water Filters for Omni Filter
Sta-Rite / Omni Industries



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We are not associated with Envirotech Products Incorporated of Mulvane Kansas          02242014