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Replacement Cartridge Kit CB3B-RS2

The replacement cartridge kit for the Omni OT32 Series E Undersink water filter. 
Includes the CB3B and the RS2 replacement cartridges.

Change CB3B filter every 4 months and RS2 filter every 3 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.
 
CB3B-RS2 Cartridge Kit - For OT32 Series E Filters

K4 O-Ring* - For OT32 Filters

OW1 Tank Wrench - For OT32 Filter 
OW30
Tank Wrench -
For OT32 Series B-E Filters

Cartridge Kit

CB3A - RS2
Replacement
Cartridges

QTY 1 Kit at $44.82 each   
QTY 2-5 Kits at $44.07 each 
QTY 6 + Kits at $43.73 each  

               
View Cart / Check Out

 

Compare Cartridges
Chart

ADD EXTRA
CARTRIDGES?

Help - What do I need?

  RO6  $58.74

  TO6  $21.32

  CB6  $74.33

  TO6  $21.32

  1100R  $48.23

  800R   $39.95

  CB1A  $34.44
  CB1B  $19.94
  CB1C  $19.94

  CB3A  $39.94
  CB3B  $39.94
  CB3C  $39.94

  FRC1  $10.22

  GAC1  $9.99

  PF300S   $8.48

  R200 $14.78

  RS12 $3.12

  RS14 $2.80

  RS1 $3.97

  RS2 $4.88

  RS3 $3.99

  RS5 $4.48

  RS6  $14.39

  RS7 $3.31

  TO1 $7.93 

Qty:    
(if selected above)

 

** 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

  OK7 O-ring + $3.95

  OK50 O-ring + $3.95

  OK25 Oring + $3.95

  U24 O-ring + $3.95

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

Qty:    
(if selected above)

 

ADD AN EXTRA
WRENCH?

- Help - 
What wrench do I need?

  OW6 Wrench + $19.99
(Strap Wrench fits all Omni filters)

  OW50 Wrench + $7.99

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

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

  OW30 Wrench + $7.99

  OW40 Wrench + $7.99

 WC79-2P Wrench +$19.99
(Strap Wrench fits all Omni filters)

Qty:    
(if selected above)

 

 

 
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

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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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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Cartridge RS2 
The RS2 is a string wound cartridge for OMNI's U25, OB1, and OB5 Whole House water filters, the Omni Undersink OT32 as well as the older models R12, R14 and Omni Regular Whole House water filters.  It has a smaller micron size than cartridges RS1 and RS3, which makes it ideal for removing small rust and sediment particles from your water. This cartridge replaces the RS2 SS and DS. 

Need Help? Please call our customer service number: (855) 855-1976 for assistance.
Change cartridge filter every 3 months. Change O-ring every 3rd filter change.
RS2 Cartridge - For OB1, OB1Series A, OB5, OB5 Series A, U25 and U25 Series C, U25 Series E

K4 O-Ring - For OB1, OB1Series A, OB5 and OB5 Series A+B Filters

OK25 O-Ring - For U25 and U25 Series C, U25 Series E Filters

OW1 Tank Wrench - For OB1 filter
OW2 Tank Wrench - For U25  and U25 Series C  Filter
WC-792P Tank Wrench - For OB5 Filter

OW40 Tank Wrench - For OB1Series A and OB5 Series A+B, U25 Series E Filters

RS2
Replacement
Cartridges

RS2 Pricing
QTY 1 at $4.88 each  
QTY 2-5 at $4.13 each
QTY 6+ at $3.79 each 

QUANTITY:      
 
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Model RS2
Filter type String Wound
Reduces: Rust & Sediment
Benefits The small micron size filters out very small rust
and sediment particles.
Average Cartridge Life1 3 mos or 15,000 gal
Flow Rate2 5 gpm
Micron Rating3 5 (Finer than RS1)
 

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

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.

Also called RS2 or RS 2 or R S2 replacement filter cartridges

<<< Return to previous page

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