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Comparing
Water Filters

How to Install
Your Water Filter

How to Change
the Cartridge in
Your Water Filter

Paper - Poly - Carbon
What's the Difference?

1 Micron - 10 Micron
20 Micron
What size do I need?

Well Water vs City Water
Water Filter Information

Why OmniFilter Filters?

   More
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a Water Filter

  
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05-3-17

 

1 Micron - 10 Micron - 20 Micron - Water Filters 

What's the Difference?

For household water filter needs: 

 

Beach Sand needs 40 micron to 500 micron filters (if you can see sand only)
Fine grit needs 20 to 40 micron filters (if you see or feel grit and sand)
Silt 5 to 20 micron filters  (discolored and muddy)
Cryptosporidium & Giardia Cysts need 1 micron filters (not visible to the naked eye)

Paper, String and Poly Spun for Rust and Sediment -  from 5 to 40 microns.
Carbon block is 0.5 microns 

 

For city water and other chlorinated water supplies. 
RS1 20 Micron   or   TO1 10 Micron 
RS7 40 Micron   or   RS2 5 Micron 

For well water systems
RS3 20 Micron   or   RS2 5 Micron 
TO3 10 Micron    or   RS7 40 Micron

Carbon Wrapped for taste and odors.
TO1 10 Micron - City Water   /   TO3 10 Micron - Well Water 

Carbon Block for taste and odors plus reducing bacteria. Cryptosporidium and Giardia cysts: 
CB1 0.5 Micron   or  CB3 0.5 Micron - plus metals and VOCs

 

What are the Filter Classes?

Particulate/Sediment
Note: Particulate reduction is divided into six classes:

Class I - 0.5 to < 1 micron in size
Class II - 1 to <5 microns in size
Class III - 5 to <15 microns in size
Class IV - 15 to <30 microns in size
Class V - 30 to <50 microns in size
Class VI - >50 microns in size

Water filters with a Standard 42 (aesthetic effects) certification are designed to minimize non-health related contaminants such as chlorine, taste and odor, and particulates. These filters sorted by classes of performance. For all other claims, there is only a pass or fail.
For taste & odor, the classes represent chlorine reduction efficiency:
Class I, a minimum of 75% chlorine reduction.
Class II, 50% reduction.
Class III, 25%.

For mechanical filtration, the classes represent particle size ranges that are removed with a minimum 85% efficiency:
Class I, ½ -1 micron.
Class II, 1-5 microns.
Class III, 5-15 microns.
Class IV, 15-30 microns.
Class V, 30-50 microns.
Class VI, 50+ microns.

It’s important to note a Class I or Class II rating does not imply cyst reduction. In order for a water filter to qualify for cyst reduction, it must have a 99.95 percent minimum filtration efficiency for 3-4 micron test dust particles, 3.000 micron micro-spheres, or live cryptosporidium oocysts.

 

Carbon Wrapped for taste and odors plus reducing bacteria.

Carbon Block for taste and odors plus reducing bacteria will be 0.5 microns to 1 microns.


PolySpun

String Wound


Carbon Wrapped


Carbon Block

 

 

Replacement water filter cartridges for your Omni Water Filter
Need a replacement cartridge for a filter not listed? Call: (855) 855-1976
See Comparison chart of cartridge qualities - Click here

 

If you know what replacement cartridge you want, choose the model number below:
See a chart comparing these cartridges for easier selection.

800R 1100R BF7 Mounting Bracket CB1    CB3  OR CB3A CB6
FRC1 GAC1  K11 / K12 faucet PF300S

NEW - Cleanable
RS19

R200 R400 R500 RO2000 Filter Replacement Kit 
(choose filters, membrane or both)
RO2050 Filter Replacement Kit 
(choose filters, membrane or both)
RO6

 

 Easy Change - Quick Change Cartridges: 1500R quick change cartridge 1750R quick change cartridge 2000R quick change cartridge kit

RO2000 Faucets  

All Replacement
Faucets

RS1 RS2 RS3 RS4 RS5
RS6 RS7 RS12 RS14 RS18         RS19
SF100 TO1 TO3 TO6

TO8

TC3 Older CB3

If you need the specialty filter for the Omni Mite, find replacements here.      And other Older OmniFilter Water Filters Here

 

Sort by Omni filter housing model number for options (find o-rings and wrenches here too)

Filter Model #

Newest
Replacement Unit

Cartridge Model #  O-Ring Wrench or Accessories
        Complete Set of Orings Universal Tank Wrench
Basic - OmniBasic U25  (or  U30 but call first) TO1  or TO3  or    RS1  or  RS2  or  RS3  or  RS5 or RS7  or RS12  or RS14   or RS19       (get help choosing 1) U24PLU  O-Ring  or U24 OW1 Tank Wrench
BF6 BF7 Series A RS6  or  TO6  or  CB6  or  TO8  or  RO6  or CB6 or RS15 or  RS18  or RS22      (get help choosing 1) OK7 O-Ring BF7 Mounting Bracket
OW6 Tank Wrench
BF7 BF7 Series A RS6  or  TO6  or  CB6  or  TO8  or  RO6  or CB6 or RS15 or  RS18  or RS22     (get help choosing 1) OK7 O-Ring BF7 Mounting Bracket
OW6 Tank Wrench
BF7 Series A     RS6  or  TO6  or  CB6  or  TO8  or  RO6  or CB6 or RS15 or  RS18   or RS22     (get help choosing 1) OK50 O-Ring BF7 Mounting Bracket
OW50 Tank Wrench
BF70   BF7 Series A   RS6  or  TO6  or  CB6  or  TO8  or  RO6  or CB6 or RS15 or  RS18  or RS22      (get help choosing 1) OK50 O-Ring BF7 Mounting Bracket
OW50 Tank Wrench
BF9   BF9C RS6  or  TO6  or  CB6  or  TO8  or  RO6  or CB6 or RS15 or  RS18   or RS22   (get help choosing 1) OK 8 O-Ring BF7 Mounting Bracket
OW60 Tank Wrench
BF9C     RS6  or  TO6  or  CB6  or  TO8  or  RO6  or CB6 or RS15 or  RS18 or RS22  (get help choosing 1) OK 8 O-Ring BF7 Mounting Bracket
OW60 Tank Wrench
BF35   RS6  or  TO6  or  CB6  or  TO8  or  RO6  or CB6 or RS15 or  RS18 or RS22      (get help choosing 1) U35 O-Ring BF7 Mounting Bracket
OW50 Tank Wrench
BF36   BF35 RS6  or  TO6  or  CB6  or  TO8  or  RO6  or CB6 or RS15 or  RS18   or RS22     (get help choosing 1) OK50 O-Ring BF7 Mounting Bracket
OW50 Tank Wrench
BF8         OK50 O-Ring OW50 Tank Wrench
BF55 TO8-20" or RS6-20" OK50 O-Ring BF7 Mounting Bracket
OW50 Tank Wrench
BF56 BF55 TO8-20" or RS6-20" OK50 O-Ring BF7 Mounting Bracket
OW50 Tank Wrench
BC1 USM2 CB1A - Original Size  (CB1 replaces BC1)  OR CB1 U24PLU  O-Ring  or U24 OW1 Tank Wrench
CBF1 CBF1 Series C CB1A  - Original Size  (or CB1C for California Residents) K4 O-Ring K12 Faucet
OW1 Tank Wrench
CBF1 Series A  CBF1 Series C CB1A  - Original Size  (or CB1C for California Residents) K4 O-Ring K12 Faucet
OW30 Tank Wrench
CBF1 Series B CBF1 Series C CB1A  - Original Size  (or CB1C for California Residents) K4 O-Ring K12 Faucet
OW30 Tank Wrench
CBF1 Series C   CB1B K4 O-Ring K12 Faucet
OW30 Tank Wrench
CBF2 US 1750 1100R NA NA
CBF3 CBF3 Series C CB3A - Original Size   Or  (CB3C for California Residents) K4 O-Ring K12 Faucet
OW1 Tank Wrench
CBF3 Series A  CBF3 Series C CB3A  - Original Size   Or  (CB3C for California Residents) K4 O-Ring K12 Faucet
OW30 Tank Wrench
CBF3 Series B CBF3 Series C CB3A  - Original Size   Or  (CB3C for California Residents) K4 O-Ring K12 Faucet
OW30 Tank Wrench
CBF3 Series C   CB3B K4 O-Ring K12 Faucet
OW30 Tank Wrench
CBF20   CB3A (is slightly smaller for older units)   RS5    OR CB1 K4 O-Ring OW1 Tank Wrench
CCF1 - Clarity Cube   R200 NA NA
F1 - Faucet Mount   FRC1 NA NA
House - OmniHouse U25  (or  U30 but call first) TO1  or TO3  or    RS1  or  RS2  or  RS3  or  RS5 or RS7  or RS12  or RS14   or RS19       (get help choosing 1) U24PLU  O-Ring or U24 OW1 Tank Wrench
Mite - Omni Mite U25  (or  U30 but call first) Mite Cartridge    
OB1 OB1 Series A TO1 or TO3  or   RS1  or  RS2  or   RS3    OK25 O-Ring if your Oring is black

K4 O-Ring if your Oring is blue

OW1 Tank Wrench
OB1 Series A   TO1  or TO3  or    RS1  or  RS2  or  RS3  or  RS5 or RS7  or RS12  or RS14   or RS19       (get help choosing 1) OK25 O-Ring OW40 Tank Wrench
OB3 USM2 GAC1  or  CB1  or  CB3  
        (get help choosing 1)
K4 O-Ring OW1 Tank Wrench
OB5 WH5 TO1  or TO3  or    RS1  or  RS2  or  RS3    or  RS5 or RS7  or RS12  or RS14   or RS19       (get help choosing 1) OK25 O-Ring WC79-2P Tank Wrench
OB5 Series A WH5 TO1  or TO3  or    RS1  or  RS2  or  RS3    or  RS5 or RS7  or RS12  or RS14   or RS19       (get help choosing 1) OK25 O-Ring OW40 Tank Wrench
OB5 Series B  
&  WH5
 
WH5 TO1  or TO3  or    RS1  or  RS2  or  RS3    or  RS5 or RS7  or RS12  or RS14   or RS19       (get help choosing 1) OK25 O-Ring OW40 Tank Wrench
         
OCT2 - Counter Top Countertop TO1  or TO3  or  GAC1  or  CB1  or  CB3         (get help choosing 1) K4 O-Ring OW1 Tank Wrench
OM 36 KCS Water Softener      
Omni Basic U25  (or  U30 but call first) TO1  or TO3  or    RS1  or  RS2  or  RS3  or  RS5 or RS7  or RS12  or RS14   or RS19       (get help choosing 1) U24PLU  O-Ring or U24 OW1 Tank Wrench
Omni Deluxe OT32 Series E  or US2000 GAC1-CB3A Kit      (uses 2 cartridges)
install GAC1 closest to water intake
U24PLU  O-Ring or U24 OW1 Tank Wrench
Omni House U25  (or  U30 but call first) TO1  or TO3  or    RS1  or  RS2  or  RS3  or  RS5 or RS7  or RS12  or RS14   or RS19 (choose 1) U24PLU  O-Ring or U24 OW1 Tank Wrench
Omni Mite U25  (or  U30 but call first) Mite Cartridge
Omni PRO 900-901 U25  (or  U30 but call first) TO1  or TO3  or    RS1  or  RS2  or  RS3  or  RS5 or RS7  or RS12  or RS14   or RS19 (choose 1) K4 O-Ring OW1 Tank Wrench
Omni PRO 902 U25  (or  U30 but call first) TO1  or TO3  or    RS1  or  RS2  or  RS3  or  RS5 or RS7  or RS12  or RS14   or RS19 (choose 1) OK25 O-Ring OW1 Tank Wrench
Omni PRO 903 BF7 Series A   RS6  or  TO6  or  CB6  or  TO8  or  RO6  or RS18  (choose 1) OK7 O-Ring BF7 Mounting Bracket
OW1 Tank Wrench
Omni Regular U25  (or  U30 but call first) TO1  or TO3  or   RS1  or  RS2  or  RS3  or RS4  U24PLU  O-Ring or U24 OW1 Tank Wrench
Omni Super USM2 GAC1 U24PLU  O-Ring or U24 OW1 Tank Wrench
OT32 OT32 Series E  or US2000 CB3A & RS14 Kit
(uses a kit of 2 cartridges)
or CB3 Alternate (is slightly smaller for older units)  OR CB1
K4 O-Ring K12 Faucet
OW1 Tank Wrench
OT32 Series A  OT32 Series E  or US2000 CB3A & RS14 Kit
(uses a kit of 2 cartridges)
or CB3A - Alternate (is slightly smaller for older units)  OR CB1
K4 O-Ring K12 Faucet
OW30 Tank Wrench
OT32 Series B  OT32 Series E  or US2000 CB3A-RS2 Kit    OR   CB3A-RS14 Kit
(uses a kit of 2 cartridges)
or CB3A - Alternate (is slightly smaller for older units)  OR CB1
K4 O-Ring K12 Faucet
OW30 Tank Wrench
OT32 Series C  OT32 Series E  or US2000 CB3A & RS14 Kit
(uses a kit of 2 cartridges)
or CB3A - Alternate (is slightly smaller for older units)  OR CB1
K4 O-Ring K12 Faucet
OW30 Tank Wrench
OT32 Series D  OT32 Series E  or US2000 CB3A & RS14 Kit
(uses a kit of 2 cartridges)
or CB3A - Alternate (is slightly smaller for older units)  OR CB1
K4 O-Ring K12 Faucet
OW30 Tank Wrench
OT32 Series E   CB3B-RS2 Kit    OR   CB3B-RS14 Kit
(uses a kit of 2 cartridges)
K4 O-Ring K12 Faucet
OW30 Tank Wrench
OT2 OT32 Series E  or US2000 GAC1-CB3A Kit  OR  CB3A & RS14 Kit
uses a Kit of 2 cartridges (install GAC1 or the RS cartridges closest to water intake)  CB3 Replaces the TC3
or CB3A -  Alternate (is slightly smaller for older units)  OR CB1
U24PLU  O-Ring or U24 OW1 Tank Wrench
OT5 OT32 Series E  or US2000 RS2-GAC1-CB3A (uses 3 cartridges)
install RS2 closest to water intake, then the GAC1 & then CB3)
U24PLU  O-Ring or U24 OW1 Tank Wrench
         
R12 U25  (or  U30 but call first) TO1  or TO3  or   RS1  or  RS2  or  RS3  or RS4 (get help choosing 1) K4 O-Ring OW1 Tank Wrench
R12 Series A U25  (or  U30 but call first) TO1  or TO3  or   RS1  or  RS2  or  RS3  or RS4 (get help choosing 1) K4 O-Ring OW1 Tank Wrench
R14 U25  (or  U30 but call first) TO1  or TO3  or   RS1  or  RS2  or  RS3  or RS4 (get help choosing 1) K4 O-Ring OW1 Tank Wrench
        NA
R200 - Fridge/Ice maker   R200 NA NA
R400 - Fridge/Icemaker   R400 NA NA
R500 - Fridge/Icemaker   R500 NA NA
R800 - Fridge/Icemaker R 1500 800R NA NA
R1100 - Fridge/Icemaker US 1750 1100R NA NA
         
RO2000   RO2000 Filter Replacement Kit 
(choose filters, membrane or both)
K4 O-Ring RO2000 Faucet
OW1 Tank Wrench
RO2050   RO2050 Filter Replacement Kit 
(choose filters, membrane or both)
K4 O-Ring RO2050 Faucet
OW1 Tank Wrench
PF500 - Pitcher   PF300S NA NA
SF100 - Shower   SF100 - discontinued NA NA
         
SFM2 USM2 GAC1 or  CB1A K4 O-Ring K12 Faucet
OW1 Tank Wrench
SFM2 Series B USM2 GAC1 or CB1A K4 O-Ring K12 Faucet
OW30 Tank Wrench
SFM2 Series C (USM2) USM2 GAC1 or  CB1A K4SU O-Ring K12 Faucet
OW30 Tank Wrench
SFM3   800R None K12 Faucet
No wrench needed
TC3 USM2  with CB3 CB3A   (CB3 replaces TC3)  OR CB1A
(is slightly smaller for older units)
U24PLU  O-Ring or U24 OW1 Tank Wrench
Total 2 OT32 Series E  or US2000 GAC1-CB3A Kit   TC3   (uses 2 cartridges)  OR CB1A
 or CB3A (is slightly smaller for older units)
U24PLU  O-Ring or U24 OW1 Tank Wrench
Total Plus OT32 Series E or US2000 GAC1-RS2-CB3A Kit     (uses 3 cartridges)  OR CB1A
or CB3A - Alternate (is slightly smaller for older units)
U24PLU  O-Ring or U24 OW1 Tank Wrench
U22 U25  or  U30 TO1  or TO3  or   RS1  or  RS2  or  RS3  or RS4 or RS19   U24PLU  O-Ring or U24 OW1 Tank Wrench
U24 U25  or  U30 TO1  or TO3  or   RS1  or  RS2  or  RS3  or RS4 or RS19   U24PLU  O-Ring or U24 OW1 Tank Wrench
U25 U25 Series E TO1  or TO3  or  RS1  or  RS2  or  RS3  or  RS4 or RS19   OK25 O-Ring OW2 Tank Wrench
U25 Series A U25 Series E TO1  or TO3  or  RS1  or  RS2  or  RS3  or  RS4  or  RS5 or RS7  or RS12  or RS14 or RS19  (get help choosing 1 U25 O-Ring OW2 Tank Wrench
U25 Series B U25 Series E TO1  or TO3  or    RS1  or  RS2  or  RS3    or  RS5 or RS7  or RS12  or RS14 or RS19  (get help choosing 1) U25 O-Ring OW2 Tank Wrench
U25 Series C U25 Series E TO1  or TO3  or    RS1  or  RS2  or  RS3    or  RS5 or RS7  or RS12  or RS14 or RS19  (get help choosing 1) U25 O-Ring OW2 Tank Wrench
U25 Series D U25 Series E TO1  or TO3  or    RS1  or  RS2  or  RS3    or  RS5 or RS7  or RS12  or RS14  or RS19 (get help choosing 1) U25 O-Ring OW2 Tank Wrench
U25 Series E   TO1  or  TO3   or    RS1  or  RS2  or  RS3    or  RS5 or RS7  or RS12  or RS14   or RS19 (get help choosing 1) U25 O-Ring OW40 Tank Wrench
U26 U25  (or  U30 but call first) TO1  or  TO3   or    RS1  or  RS2  or  RS3    or  RS5 or RS7  or RS12  or RS14   or RS19 (get help choosing 1) U24PLU  O-Ring or U24 OW2 Tank Wrench
U26 Series A U25  (or  U30 but call first) TO1  or  TO3   or    RS1  or  RS2  or  RS3    or  RS5 or RS7  or RS12  or RS14   or RS19 (get help choosing 1) K4 O-Ring OW30 Tank Wrench
U30   TO1  or TO3  or    RS1  or  RS2  or  RS3    or  RS5 or RS7  or RS12  or RS14   or RS19 (get help choosing 1) K4 O-Ring OW30 Tank Wrench
U400 USM2 GAC1 U24 if your oring is Black
K4 if your oring is Blue
OW1 Tank Wrench
U450 USM2 CB1A U24PLU  O-Ring or U24 OW1 Tank Wrench
U500 OT32 Series E  or US2000 GAC1-CB3A Kit   TC3  (uses 2 cartridges)  OR CB1
or CB3A - Alternate (is slightly smaller for older units)
U24 if your oring is Black
K4 if your oring is Blue
OW1 Tank Wrench
U600 OT32 Series E  or US2000 GAC1-CB3A Kit    TC3   (uses 2 cartridges)
or CB3A - Alternate (is slightly smaller for older units)
U24PLU  O-Ring or U24 OW1 Tank Wrench
UC2 OT32 Series E  or US2000 GAC1 - Double Pack  
(uses 2 - GAC1 cartridges)
or CB3A - Alternate (is slightly smaller for older units)
U24PLU  O-Ring or U24 OW1 Tank Wrench
UC2 USM2 GAC1 U24PLU  O-Ring or U24 OW1 Tank Wrench
U700 OT32 Series E  or US2000 GAC1-CB1A-CB3A Kit    (uses 3 cartridges)  
or CB3A - Alternate (is slightly smaller for older units)
U24PLU  O-Ring or U24 OW1 Tank Wrench
US 1750   1750 R None Needed  None Needed
US 2000   2000 R None Needed None Needed
USM2 (SFM2) USM2 GAC1 or  CB1A K4SU O-Ring K12 Faucet
OW30 Tank Wrench
WH5    TO1  or TO3  or    RS1  or  RS2  or  RS3    or  RS5 or RS7  or RS12  or RS14 (choose 1) OK25 O-Ring OW40 Tank Wrench
         
Oring Lubricant

Connections - Fittings - Hardware

Closeouts and Discounted Defects Complete Set of Orings Universal Tank Wrench
  10-27-2014     

 

WCF2 We're sorry. This item is no longer available.
K11 / K12 Universal water faucet for use with Omni units: SFM2, CBF1, CBF3, OT32. Will not work with the Reverse Osmosis Unit RO2000.
RO2000 Faucet Universal water faucet for use with Omni RO2000 units
BF7 Mounting Bracket Mounting Bracket for use with the Omni BF7 Units

 

Or Call Us (855) 855-1976

 

Quality replacement filters for your favorite Omni water filters and purifiers. 
Whole House | Undersink | Faucet Mount | Refrigerator |

Maybe it's time for you to be changing filters?

    REVISED  07-28-2011                                                      1          

 

          

      

      

      

         00827201400       

      


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Fridge/ice-maker filters

Because of the product’s limited service life and to prevent costly repairs or possible water damage, we strongly recommend that the bottom of all plastic housings be replaced every ten years. If the bottom of your housing has been in use for longer than this period, it should be replaced immediately. Date the bottom of any new or replacement housing to indicate the next recommended replacement date.

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