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Water Filter System - Model SYS-OB3-CB3

OB3 is no longer available. See our entire line of Undersink Filter Systems.

This unit will remove:  Odor & chlorine, Lead, Giardia  &Cryptosporidium

ystem includes:  Unit OB3,   Replacement Cartridge CB3

Model OB3 is OMNI's basic under sink water filter for professional installers. The filter comes with the filter housing, mounting bracket, and a pressure release valve. The  installation hardware and wrench are sold separately.

If you are a do-it-yourself-er, we recommend you install one of the other under sink models, which comes complete with a filter cartridge and the necessary installation fittings. Change tank O-ring with every second filter cartridge change.


Replacement Cartridge (included)

Whole House
CB3 Filter Cartridge

Model CB3
Filter type Carbon Block
Reduces: Rust & Sediment (Class I)
Removes: Odor & Chlorine (98%)
Removes: Lead (97%)
Removes: Cryptosporidium & Giardia Cysts (99.99%)
Removes: VOCs (97-99%) - 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 600 gal
Flow Rate2 0.75 gpm
Micron Rating 3 0.5
Buy a CB3

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 Link For Tank Wrench and O-Rings

Click Link For Installation information



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