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Cartridge CB3
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.

Need Help? Please call our customer service number: (855) 855-1976 for assistance. 
Change cartridge filter every 400 gallons  (4 months).  CB3 Replacement Instructions
CB3  Cartridge - For CBF3, For CBF3 Series B, OT32 and OT32 Series B Filters

K4 O-Ring* - For CBF3, CBF3 Series B,  OT32 & OT32 Series B

OW1 Tank Wrench - For CBF3 & OT32

OW30 Tank Wrench - For CBF3 Series B & OT32 Series B

*SPECIAL NOTE
CB3A
An Original Sized *Alternate Cartridge CB3A will fit into older models, including:
OB3, SFM2, SFM2 Series A, CBF1, CBF1 Series A, - CBF1 Series B, CBF3, CBF3 Series A, - CBF20, OT32 Series A, OT2/U600
UC2/U500-OmniDeluxe, OT5/U700, SMF-5/U400
-  OmniSuper, RO2000/RO2000TDS (Original with blue pre-filter sumps)
CB3B
The new CB3B cartridge fits into new housings for:
USM2, SFM2 Series B, CBF1 Series C
CBF3 Series B, OT32 Series B, OT32 Series E  -  RO2000 Series B, RO2050
if unsure, order the CB3A
CB3C
The CA Certified Alternate CB3C :
NOTE: For California Residents  
Due to California Law, we are unable to sell you the Omnifilter CB3 at this time.  We found a compatible cartridge CB3C and will send that to CA residents instead.

CB3 
Choose Size  

Replacement 
Cartridges

CB3 Pricing 
Depends on Model Number 

  CB3A - ORIGINAL SIZE CB3A  $39.94
  CB3B - NEWER LARGER CB3B for NEW UNITS  $39.94
  CB3C - for California Residents  $39.94
QUANTITY:      
 
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The Alternate cartridge is smaller than the new CB3 and will fit your older OT32.

** We recommend using fresh
Lubricant with every
cartridge change
and every o-ring change.


ADD EXTRA
ORINGS OR PARTS?

Help - What Oring do I need?

Replacement 
plumbing fittings

  K4 O-ring + $3.95

 O-Ring Lubricant $.49
** Adding Lubricant.

Qty:    
(if selected above)

 

ADD AN EXTRA
WRENCH?

- Help - 
What wrench do I need?

  Universal Strap Wrench 
+ $19.99 (fits all Omni filters)

  OW1 Wrench + $19.99
(Strap Wrench fits all Omni filters)

  OW30 Wrench + $7.99

Qty:    
(if selected above)

 

 

NOTE: California Residents & Anyone with an Older Unit using a CB3

 
Due to California Law, we are unable to sell you the current Omnifilter CB3B.  We found a compatible California Certified cartridge and will send that to CA residents instead.   Order the California Certified CB3C Alternate.

ALSO NOTE: The New CB3B is larger than the old CB3A
Our Alternate CB3A  Cartridge has a slightly smaller diameter than the new CB3B and it will fit your older CBF1 and OT32 and the other older OmniFilter Units.  Order the Alternate Smaller CB3A - if you have an older unit.

 

Model CB3
Filter type Carbon Block
Reduces: Rust & Sediment (Class I)
  Odor & Chlorine (98%)
  Lead (97%) Mercury, Asbestos
  Cryptosporidium & Giardia Cysts (99.99%)
  VOCs (97-99%) - Including Atrazine & Lindane   MTBE 
Benefits Reduces 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 1 400 gal
Flow Rate2 0.5 gpm
Micron Rating 3 0.5
 

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.

 

Click On Links For Tank Wrench and Replacement O-Rings Information

Installation Information

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.

 

The CB3 filter cartridge replaces the TC3 or TC 3 filter cartridge.

Also called CB3 or CB 3 filter cartridge.

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NOTE: as of 2008, the design of the CB3 has changed again. The CB3 will now be open at both ends. Another major difference is that this newer version will last longer (up to 6 months).

NOTE: as of 2014, the design of the CB3 has changed again. The CB3 will not fit in some older units.

If you receive a new model and you are unable to close the top of your housing, please remove the o-ring(s) from the new filter and use the ones from the old filter, as the new ones may be thicker. This should allow you to close the lid on the housing.  If the new CB3 is too large to fit in your unit, exchange for a smaller cartridge.

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E-mail info@envirotechproducts.com

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